102212211010021 has 16 divisors (see below), whose sum is σ = 122964219481600. Its totient is φ = 82997930633328.

The previous prime is 102212211009991. The next prime is 102212211010031. The reversal of 102212211010021 is 120010112212201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102212211010021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102212211009977 and 102212211010004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212211010031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874546 + ... + 14324428.

It is an arithmetic number, because the mean of its divisors is an integer number (7685263717600).

Almost surely, 2^{102212211010021} is an apocalyptic number.

It is an amenable number.

102212211010021 is a deficient number, since it is larger than the sum of its proper divisors (20752008471579).

102212211010021 is a wasteful number, since it uses less digits than its factorization.

102212211010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13507048.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102212211010021 its reverse (120010112212201), we get a palindrome (222222323222222).

The spelling of 102212211010021 in words is "one hundred two trillion, two hundred twelve billion, two hundred eleven million, ten thousand, twenty-one".