102122202021 has 32 divisors (see below), whose sum is σ = 158216094720. Its totient is φ = 57388020096.

The previous prime is 102122202019. The next prime is 102122202031. The reversal of 102122202021 is 120202221201.

It is not a de Polignac number, because 102122202021 - 2¹ = 102122202019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122202031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141970 + ... + 473708.

It is an arithmetic number, because the mean of its divisors is an integer number (4944252960).

Almost surely, 2^102122202021 is an apocalyptic number.

It is an amenable number.

102122202021 is a deficient number, since it is larger than the sum of its proper divisors (56093892699).

102122202021 is a wasteful number, since it uses less digits than its factorization.

102122202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331993.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102122202021 its reverse (120202221201), we get a palindrome (222324423222).

The spelling of 102122202021 in words is "one hundred two billion, one hundred twenty-two million, two hundred two thousand, twenty-one".