111122020221111 has 12 divisors (see below), whose sum is σ = 161437385834088. Its totient is φ = 73653130935504.

The previous prime is 111122020221103. The next prime is 111122020221139.

It is a happy number.

111122020221111 is a `hidden beast` number, since 1 + 111 + 220 + 2 + 0 + 221 + 111 = 666.

111122020221111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111122020221111 - 2³ = 111122020221103 is a prime.

It is a super-4 number, since 4×111122020221111⁴ (a number of 57 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122020221161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35684654905 + ... + 35684658018.

It is an arithmetic number, because the mean of its divisors is an integer number (13453115486174).

Almost surely, 2^{111122020221111} is an apocalyptic number.

111122020221111 is a deficient number, since it is larger than the sum of its proper divisors (50315365612977).

111122020221111 is a wasteful number, since it uses less digits than its factorization.

111122020221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71369313102 (or 71369313099 counting only the distinct ones).

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

The spelling of 111122020221111 in words is "one hundred eleven trillion, one hundred twenty-two billion, twenty million, two hundred twenty-one thousand, one hundred eleven".