102211220111211 has 12 divisors (see below), whose sum is σ = 147741744973680. Its totient is φ = 68093129134800.

The previous prime is 102211220111201. The next prime is 102211220111237. The reversal of 102211220111211 is 112111022112201.

It is a happy number.

102211220111211 is a `hidden beast` number, since 1 + 0 + 221 + 1 + 220 + 1 + 11 + 211 = 666.

It is not a de Polignac number, because 102211220111211 - 2⁷ = 102211220111083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102211220111201) 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, 3973675815 + ... + 3973701536.

It is an arithmetic number, because the mean of its divisors is an integer number (12311812081140).

Almost surely, 2^{102211220111211} is an apocalyptic number.

102211220111211 is a deficient number, since it is larger than the sum of its proper divisors (45530524862469).

102211220111211 is a wasteful number, since it uses less digits than its factorization.

102211220111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947378786 (or 7947378783 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 102211220111211 its reverse (112111022112201), we get a palindrome (214322242223412).

It can be divided in two parts, 1022112201 and 11211, that multiplied together give a palindrome (11458899885411).

The spelling of 102211220111211 in words is "one hundred two trillion, two hundred eleven billion, two hundred twenty million, one hundred eleven thousand, two hundred eleven".