221112111022 has 32 divisors (see below), whose sum is σ = 386896505184. Its totient is φ = 93656832000.

The previous prime is 221112110981. The next prime is 221112111023. The reversal of 221112111022 is 220111211122.

It is a junction number, because it is equal to n+sod(n) for n = 221112110987 and 221112111005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112111023) 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, 2889003 + ... + 2964550.

It is an arithmetic number, because the mean of its divisors is an integer number (12090515787).

Almost surely, 2^221112111022 is an apocalyptic number.

221112111022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221112111022 is a deficient number, since it is larger than the sum of its proper divisors (165784394162).

221112111022 is a wasteful number, since it uses less digits than its factorization.

221112111022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5853684.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221112111022 its reverse (220111211122), we get a palindrome (441223322144).

The spelling of 221112111022 in words is "two hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, twenty-two".