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122220012222020 = 22531328875994133
BaseRepresentation
bin11011110010100010010000…
…011010011011011001000100
3121000202010012210102210010002
4123302202100122123121010
5112004423041112101040
61111535033135220432
734513050560545646
oct3362422032333104
9530663183383102
10122220012222020
1135a412416a2859
121185b082977718
1353273b4076bab
1422276a1788896
15e1e352939a15
hex6f289069b644

122220012222020 has 48 divisors (see below), whose sum is σ = 264949546165248. Its totient is φ = 47309525988480.

The previous prime is 122220012222017. The next prime is 122220012222043. The reversal of 122220012222020 is 20222210022221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 122220012221983 and 122220012222001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17392874 + ... + 23387006.

It is an arithmetic number, because the mean of its divisors is an integer number (5519782211776).

Almost surely, 2122220012222020 is an apocalyptic number.

122220012222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122220012222020 is an abundant number, since it is smaller than the sum of its proper divisors (142729533943228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122220012222020 is a wasteful number, since it uses less digits than its factorization.

122220012222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6027060 (or 6027058 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 122220012222020 its reverse (20222210022221), we get a palindrome (142442222244241).

The spelling of 122220012222020 in words is "one hundred twenty-two trillion, two hundred twenty billion, twelve million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 32887 65774 131548 164435 328870 657740 1019497 2038994 4077988 5097485 5994133 10194970 11988266 20389940 23976532 29970665 59941330 119882660 185818123 371636246 743272492 929090615 1858181230 3716362460 197129051971 394258103942 788516207884 985645259855 1971290519710 3942581039420 6111000611101 12222001222202 24444002444404 30555003055505 61110006111010 122220012222020