111012121021010 has 32 divisors (see below), whose sum is σ = 221561002206144. Its totient is φ = 39706272792000.

The previous prime is 111012121020947. The next prime is 111012121021063. The reversal of 111012121021010 is 10120121210111.

It is a super-2 number, since 2×111012121021010² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8272133456 + ... + 8272146875.

It is an arithmetic number, because the mean of its divisors is an integer number (6923781318942).

Almost surely, 2^{111012121021010} is an apocalyptic number.

111012121021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111012121021010 is a deficient number, since it is larger than the sum of its proper divisors (110548881185134).

111012121021010 is a wasteful number, since it uses less digits than its factorization.

111012121021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16544280410.

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

Adding to 111012121021010 its reverse (10120121210111), we get a palindrome (121132242231121).

The spelling of 111012121021010 in words is "one hundred eleven trillion, twelve billion, one hundred twenty-one million, twenty-one thousand, ten".