111120010022021 has 16 divisors (see below), whose sum is σ = 149196097373568. Its totient is φ = 79926480734400.

The previous prime is 111120010022011. The next prime is 111120010022059. The reversal of 111120010022021 is 120220010021111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111120010022021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111120010021987 and 111120010022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120010022011) 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, 55504499510 + ... + 55504501511.

It is an arithmetic number, because the mean of its divisors is an integer number (9324756085848).

Almost surely, 2^{111120010022021} is an apocalyptic number.

111120010022021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111120010022021 is a deficient number, since it is larger than the sum of its proper divisors (38076087351547).

111120010022021 is a wasteful number, since it uses less digits than its factorization.

111120010022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111009001052.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111120010022021 its reverse (120220010021111), we get a palindrome (231340020043132).

The spelling of 111120010022021 in words is "one hundred eleven trillion, one hundred twenty billion, ten million, twenty-two thousand, twenty-one".