102022102111221 has 48 divisors (see below), whose sum is σ = 152729573068800. Its totient is φ = 65583101596320.

The previous prime is 102022102111211. The next prime is 102022102111231. The reversal of 102022102111221 is 122111201220201.

102022102111221 is a `hidden beast` number, since 1 + 0 + 20 + 2 + 210 + 211 + 1 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (102022102111211) and next prime (102022102111231).

It is not a de Polignac number, because 102022102111221 - 2⁶ = 102022102111157 is a prime.

It is a super-2 number, since 2×102022102111221² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102022102111194 and 102022102111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102022102111211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40802086 + ... + 43230248.

It is an arithmetic number, because the mean of its divisors is an integer number (3181866105600).

Almost surely, 2^{102022102111221} is an apocalyptic number.

It is an amenable number.

102022102111221 is a deficient number, since it is larger than the sum of its proper divisors (50707470957579).

102022102111221 is a wasteful number, since it uses less digits than its factorization.

102022102111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429686 (or 2429683 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 102022102111221 its reverse (122111201220201), we get a palindrome (224133303331422).

The spelling of 102022102111221 in words is "one hundred two trillion, twenty-two billion, one hundred two million, one hundred eleven thousand, two hundred twenty-one".