102012202210221 has 12 divisors (see below), whose sum is σ = 147593711571072. Its totient is φ = 67896095042376.

The previous prime is 102012202210141. The next prime is 102012202210229. The reversal of 102012202210221 is 122012202210201.

It is a happy number.

102012202210221 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 1 + 220 + 221 + 0 + 221 = 666.

It is not a de Polignac number, because 102012202210221 - 2²⁷ = 102012067992493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102012202210194 and 102012202210203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012202210229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9336641271 + ... + 9336652196.

It is an arithmetic number, because the mean of its divisors is an integer number (12299475964256).

Almost surely, 2^{102012202210221} is an apocalyptic number.

It is an amenable number.

102012202210221 is a deficient number, since it is larger than the sum of its proper divisors (45581509360851).

102012202210221 is a wasteful number, since it uses less digits than its factorization.

102012202210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18673294080 (or 18673294077 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102012202210221 its reverse (122012202210201), we get a palindrome (224024404420422).

The spelling of 102012202210221 in words is "one hundred two trillion, twelve billion, two hundred two million, two hundred ten thousand, two hundred twenty-one".