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122002202021 = 7163106925681
BaseRepresentation
bin111000110011111100…
…1011101110110100101
3102122220112200000022212
41301213321131312211
53444330030431041
6132014054333205
711546220415040
oct1614771356645
9378815600285
10122002202021
1147817076137
121b78a35a205
13b673c52aab
145c95215c57
153290b508eb
hex1c67e5dda5

122002202021 has 8 divisors (see below), whose sum is σ = 140286494784. Its totient is φ = 103931760960.

The previous prime is 122002202011. The next prime is 122002202027. The reversal of 122002202021 is 120202200221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122002202021 - 210 = 122002200997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122002201987 and 122002202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002202027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53461700 + ... + 53463981.

It is an arithmetic number, because the mean of its divisors is an integer number (17535811848).

Almost surely, 2122002202021 is an apocalyptic number.

It is an amenable number.

122002202021 is a deficient number, since it is larger than the sum of its proper divisors (18284292763).

122002202021 is a wasteful number, since it uses less digits than its factorization.

122002202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106925851.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 122002202021 its reverse (120202200221), we get a palindrome (242204402242).

The spelling of 122002202021 in words is "one hundred twenty-two billion, two million, two hundred two thousand, twenty-one".

Divisors: 1 7 163 1141 106925681 748479767 17428886003 122002202021