111121201021010 has 64 divisors (see below), whose sum is σ = 212747473741824. Its totient is φ = 41643559910400.

The previous prime is 111121201021009. The next prime is 111121201021037. The reversal of 111121201021010 is 10120102121111.

It is a super-2 number, since 2×111121201021010² (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 31 ways as a sum of consecutive naturals, for example, 639492740 + ... + 639666480.

It is an arithmetic number, because the mean of its divisors is an integer number (3324179277216).

Almost surely, 2^{111121201021010} is an apocalyptic number.

111121201021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111121201021010 is a deficient number, since it is larger than the sum of its proper divisors (101626272720814).

111121201021010 is a wasteful number, since it uses less digits than its factorization.

111121201021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190859.

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

Adding to 111121201021010 its reverse (10120102121111), we get a palindrome (121241303142121).

The spelling of 111121201021010 in words is "one hundred eleven trillion, one hundred twenty-one billion, two hundred one million, twenty-one thousand, ten".