102012212211111 has 16 divisors (see below), whose sum is σ = 151285489977600. Its totient is φ = 67937812458264.

The previous prime is 102012212211083. The next prime is 102012212211167. The reversal of 102012212211111 is 111112212210201.

It is a happy number.

102012212211111 is a `hidden beast` number, since 1 + 0 + 201 + 221 + 221 + 11 + 11 = 666.

It is not a de Polignac number, because 102012212211111 - 2⁵ = 102012212211079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012212212111) 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, 1953557181 + ... + 1953609398.

It is an arithmetic number, because the mean of its divisors is an integer number (9455343123600).

Almost surely, 2^{102012212211111} is an apocalyptic number.

102012212211111 is a deficient number, since it is larger than the sum of its proper divisors (49273277766489).

102012212211111 is an equidigital number, since it uses as much as digits as its factorization.

102012212211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3907167555 (or 3907167549 counting only the distinct ones).

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

Adding to 102012212211111 its reverse (111112212210201), we get a palindrome (213124424421312).

The spelling of 102012212211111 in words is "one hundred two trillion, twelve billion, two hundred twelve million, two hundred eleven thousand, one hundred eleven".