102212211021 has 16 divisors (see below), whose sum is σ = 137298889344. Its totient is φ = 67633657344.

The previous prime is 102212211011. The next prime is 102212211047. The reversal of 102212211021 is 120112212201.

It is not a de Polignac number, because 102212211021 - 2¹⁵ = 102212178253 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212211011) 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, 3381045 + ... + 3411141.

It is an arithmetic number, because the mean of its divisors is an integer number (8581180584).

Almost surely, 2^102212211021 is an apocalyptic number.

It is an amenable number.

102212211021 is a deficient number, since it is larger than the sum of its proper divisors (35086678323).

102212211021 is a wasteful number, since it uses less digits than its factorization.

102212211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38500.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102212211021 its reverse (120112212201), we get a palindrome (222324423222).

The spelling of 102212211021 in words is "one hundred two billion, two hundred twelve million, two hundred eleven thousand, twenty-one".