111112120020010 has 32 divisors (see below), whose sum is σ = 201841036491600. Its totient is φ = 44036149893120.

The previous prime is 111112120019963. The next prime is 111112120020053. The reversal of 111112120020010 is 10020021211111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 94528386850041 + 16583733169969 = 9722571^2 + 4072313^2 .

It is a super-2 number, since 2×111112120020010² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50725336 + ... + 52870444.

Almost surely, 2^{111112120020010} is an apocalyptic number.

111112120020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111112120020010 is a deficient number, since it is larger than the sum of its proper divisors (90728916471590).

111112120020010 is a wasteful number, since it uses less digits than its factorization.

111112120020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192746.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111112120020010 its reverse (10020021211111), we get a palindrome (121132141231121).

The spelling of 111112120020010 in words is "one hundred eleven trillion, one hundred twelve billion, one hundred twenty million, twenty thousand, ten".