111021020120111 has 32 divisors (see below), whose sum is σ = 122309896396800. Its totient is φ = 100374116544000.

The previous prime is 111021020120051. The next prime is 111021020120207.

111021020120111 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 111021020120111 - 2⁶ = 111021020120047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021020125111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36748871 + ... + 39655031.

It is an arithmetic number, because the mean of its divisors is an integer number (3822184262400).

Almost surely, 2^{111021020120111} is an apocalyptic number.

111021020120111 is a deficient number, since it is larger than the sum of its proper divisors (11288876276689).

111021020120111 is a wasteful number, since it uses less digits than its factorization.

111021020120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907111.

The product of its (nonzero) digits is 8, while the sum is 14.

The spelling of 111021020120111 in words is "one hundred eleven trillion, twenty-one billion, twenty million, one hundred twenty thousand, one hundred eleven".