102211020111 has 32 divisors (see below), whose sum is σ = 144534693888. Its totient is φ = 64135912320.

The previous prime is 102211020091. The next prime is 102211020157. The reversal of 102211020111 is 111020112201.

It is not a de Polignac number, because 102211020111 - 2²⁵ = 102177465679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211020211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14218060 + ... + 14225246.

It is an arithmetic number, because the mean of its divisors is an integer number (4516709184).

Almost surely, 2^102211020111 is an apocalyptic number.

102211020111 is a deficient number, since it is larger than the sum of its proper divisors (42323673777).

102211020111 is a wasteful number, since it uses less digits than its factorization.

102211020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11391.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102211020111 its reverse (111020112201), we get a palindrome (213231132312).

The spelling of 102211020111 in words is "one hundred two billion, two hundred eleven million, twenty thousand, one hundred eleven".