102010102012221 has 64 divisors (see below), whose sum is σ = 156158901561600. Its totient is φ = 58676573491200.

The previous prime is 102010102012207. The next prime is 102010102012267. The reversal of 102010102012221 is 122210201010201.

It is not a de Polignac number, because 102010102012221 - 2⁶ = 102010102012157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102010102012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102010102013221) 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, 622374946 + ... + 622538828.

It is an arithmetic number, because the mean of its divisors is an integer number (2439982836900).

Almost surely, 2^{102010102012221} is an apocalyptic number.

It is an amenable number.

102010102012221 is a deficient number, since it is larger than the sum of its proper divisors (54148799549379).

102010102012221 is a wasteful number, since it uses less digits than its factorization.

102010102012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170366.

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

Adding to 102010102012221 its reverse (122210201010201), we get a palindrome (224220303022422).

The spelling of 102010102012221 in words is "one hundred two trillion, ten billion, one hundred two million, twelve thousand, two hundred twenty-one".