102212222001220 has 24 divisors (see below), whose sum is σ = 219880926355608. Its totient is φ = 39887696390400.

The previous prime is 102212222001209. The next prime is 102212222001229. The reversal of 102212222001220 is 22100222212201.

It can be written as a sum of positive squares in 4 ways, for example, as 11876473643076 + 90335748358144 = 3446226^2 + 9504512^2 .

It is not an unprimeable number, because it can be changed into a prime (102212222001229) 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, 62324524791 + ... + 62324526430.

It is an arithmetic number, because the mean of its divisors is an integer number (9161705264817).

Almost surely, 2^{102212222001220} is an apocalyptic number.

102212222001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102212222001220 is an abundant number, since it is smaller than the sum of its proper divisors (117668704354388).

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

102212222001220 is a wasteful number, since it uses less digits than its factorization.

102212222001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124649051271 (or 124649051269 counting only the distinct ones).

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

Adding to 102212222001220 its reverse (22100222212201), we get a palindrome (124312444213421).

The spelling of 102212222001220 in words is "one hundred two trillion, two hundred twelve billion, two hundred twenty-two million, one thousand, two hundred twenty".