102221001222212 has 12 divisors (see below), whose sum is σ = 180657908101356. Its totient is φ = 50604456050400.

The previous prime is 102221001222211. The next prime is 102221001222239. The reversal of 102221001222212 is 212222100122201.

It can be written as a sum of positive squares in 2 ways, for example, as 99159852073216 + 3061149148996 = 9957904^2 + 1749614^2 .

It is not an unprimeable number, because it can be changed into a prime (102221001222211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126511139723 + ... + 126511140530.

It is an arithmetic number, because the mean of its divisors is an integer number (15054825675113).

Almost surely, 2^{102221001222212} is an apocalyptic number.

It is an amenable number.

102221001222212 is a deficient number, since it is larger than the sum of its proper divisors (78436906879144).

102221001222212 is a wasteful number, since it uses less digits than its factorization.

102221001222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253022280358 (or 253022280356 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102221001222212 its reverse (212222100122201), we get a palindrome (314443101344413).

The spelling of 102221001222212 in words is "one hundred two trillion, two hundred twenty-one billion, one million, two hundred twenty-two thousand, two hundred twelve".