102222212002121 has 4 divisors (see below), whose sum is σ = 102222242055552. Its totient is φ = 102222181948692.

The previous prime is 102222212002069. The next prime is 102222212002133. The reversal of 102222212002121 is 121200212222201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102222212002121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102222212002093 and 102222212002102.

It is not an unprimeable number, because it can be changed into a prime (102222212002171) 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, 9161621 + ... + 16981746.

It is an arithmetic number, because the mean of its divisors is an integer number (25555560513888).

Almost surely, 2^{102222212002121} is an apocalyptic number.

It is an amenable number.

102222212002121 is a deficient number, since it is larger than the sum of its proper divisors (30053431).

102222212002121 is an equidigital number, since it uses as much as digits as its factorization.

102222212002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30053430.

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

Adding to 102222212002121 its reverse (121200212222201), we get a palindrome (223422424224322).

The spelling of 102222212002121 in words is "one hundred two trillion, two hundred twenty-two billion, two hundred twelve million, two thousand, one hundred twenty-one".