102221111010212 has 6 divisors (see below), whose sum is σ = 178886944267878. Its totient is φ = 51110555505104.

The previous prime is 102221111010209. The next prime is 102221111010223. The reversal of 102221111010212 is 212010111122201.

It can be written as a sum of positive squares in only one way, i.e., 94224567680356 + 7996543329856 = 9706934^2 + 2827816^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777638876273 + ... + 12777638876280.

It is an arithmetic number, because the mean of its divisors is an integer number (29814490711313).

Almost surely, 2^{102221111010212} is an apocalyptic number.

It is an amenable number.

102221111010212 is a deficient number, since it is larger than the sum of its proper divisors (76665833257666).

102221111010212 is a wasteful number, since it uses less digits than its factorization.

102221111010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25555277752557 (or 25555277752555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102221111010212 its reverse (212010111122201), we get a palindrome (314231222132413).

The spelling of 102221111010212 in words is "one hundred two trillion, two hundred twenty-one billion, one hundred eleven million, ten thousand, two hundred twelve".