221112022020111 has 40 divisors (see below), whose sum is σ = 335220246527760. Its totient is φ = 145225563956352.

The previous prime is 221112022020077. The next prime is 221112022020133. The reversal of 221112022020111 is 111020220211122.

221112022020111 is a `hidden beast` number, since 2 + 211 + 1 + 20 + 220 + 201 + 11 = 666.

It is not a de Polignac number, because 221112022020111 - 2⁹ = 221112022019599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112022020161) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 53367121 + ... + 57360906.

It is an arithmetic number, because the mean of its divisors is an integer number (8380506163194).

Almost surely, 2^{221112022020111} is an apocalyptic number.

221112022020111 is a deficient number, since it is larger than the sum of its proper divisors (114108224507649).

221112022020111 is a wasteful number, since it uses less digits than its factorization.

221112022020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110728405 (or 110728396 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 221112022020111 its reverse (111020220211122), we get a palindrome (332132242231233).

The spelling of 221112022020111 in words is "two hundred twenty-one trillion, one hundred twelve billion, twenty-two million, twenty thousand, one hundred eleven".