111021000120111 has 16 divisors (see below), whose sum is σ = 148135983267168. Its totient is φ = 73960013952000.

The previous prime is 111021000120097. The next prime is 111021000120161.

111021000120111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111021000120111 - 2⁶ = 111021000120047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111021000120161) 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, 82420455 + ... + 83756631.

It is an arithmetic number, because the mean of its divisors is an integer number (9258498954198).

Almost surely, 2^{111021000120111} is an apocalyptic number.

111021000120111 is a deficient number, since it is larger than the sum of its proper divisors (37114983147057).

111021000120111 is a wasteful number, since it uses less digits than its factorization.

111021000120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356362.

The product of its (nonzero) digits is 4, while the sum is 12.

It can be divided in two parts, 111021000 and 120111, that added together give a palindrome (111141111).

The spelling of 111021000120111 in words is "one hundred eleven trillion, twenty-one billion, one hundred twenty thousand, one hundred eleven".