102212022222121 has 64 divisors (see below), whose sum is σ = 119608622369280. Its totient is φ = 85543729920000.

The previous prime is 102212022222083. The next prime is 102212022222139. The reversal of 102212022222121 is 121222220212201.

It is a cyclic number.

It is not a de Polignac number, because 102212022222121 - 2¹⁹ = 102212021697833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102212022222092 and 102212022222101.

It is not an unprimeable number, because it can be changed into a prime (102212022222421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 62822385310 + ... + 62822386936.

It is an arithmetic number, because the mean of its divisors is an integer number (1868884724520).

Almost surely, 2^{102212022222121} is an apocalyptic number.

It is an amenable number.

102212022222121 is a deficient number, since it is larger than the sum of its proper divisors (17396600147159).

102212022222121 is a wasteful number, since it uses less digits than its factorization.

102212022222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3826.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 102212022222121 its reverse (121222220212201), we get a palindrome (223434242434322).

The spelling of 102212022222121 in words is "one hundred two trillion, two hundred twelve billion, twenty-two million, two hundred twenty-two thousand, one hundred twenty-one".