112111220221 has 16 divisors (see below), whose sum is σ = 150526954368. Its totient is φ = 80639438400.

The previous prime is 112111220213. The next prime is 112111220227. The reversal of 112111220221 is 122022111211.

It is a cyclic number.

It is not a de Polignac number, because 112111220221 - 2³ = 112111220213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112111220195 and 112111220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111220227) 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, 55998610 + ... + 56000611.

It is an arithmetic number, because the mean of its divisors is an integer number (9407934648).

Almost surely, 2^112111220221 is an apocalyptic number.

112111220221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112111220221 is a deficient number, since it is larger than the sum of its proper divisors (38415734147).

112111220221 is a wasteful number, since it uses less digits than its factorization.

112111220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111999252.

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

Adding to 112111220221 its reverse (122022111211), we get a palindrome (234133331432).

It can be divided in two parts, 11211 and 1220221, that multiplied together give a palindrome (13679897631).

The spelling of 112111220221 in words is "one hundred twelve billion, one hundred eleven million, two hundred twenty thousand, two hundred twenty-one".