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122021002212220 = 22525108124299131
BaseRepresentation
bin11011101111101000111010…
…011111011111001101111100
3121000001002112102222210212101
4123233220322133133031330
5111443143003031242340
61111303401412114444
734462504120432516
oct3357507237371574
9530032472883771
10122021002212220
11359748a8738981
12118285a2905a24
1353116b9b9ba47
14221bbc2d6abb6
15e190a636ac9a
hex6efa3a7df37c

122021002212220 has 24 divisors (see below), whose sum is σ = 256245135754608. Its totient is φ = 48808204483200.

The previous prime is 122021002212103. The next prime is 122021002212223. The reversal of 122021002212220 is 22212200120221.

122021002212220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021002212223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7127946 + ... + 17171185.

It is an arithmetic number, because the mean of its divisors is an integer number (10676880656442).

Almost surely, 2122021002212220 is an apocalyptic number.

122021002212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122021002212220 is an abundant number, since it is smaller than the sum of its proper divisors (134224133542388).

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

122021002212220 is a wasteful number, since it uses less digits than its factorization.

122021002212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24550221 (or 24550219 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122021002212220 its reverse (22212200120221), we get a palindrome (144233202332441).

The spelling of 122021002212220 in words is "one hundred twenty-two trillion, twenty-one billion, two million, two hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 251081 502162 1004324 1255405 2510810 5021620 24299131 48598262 97196524 121495655 242991310 485982620 6101050110611 12202100221222 24404200442444 30505250553055 61010501106110 122021002212220