111201021010 has 64 divisors (see below), whose sum is σ = 219548703744. Its totient is φ = 40369766400.

The previous prime is 111201021007. The next prime is 111201021031. The reversal of 111201021010 is 10120102111.

It is a super-2 number, since 2×111201021010² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1454130 + ... + 1528690.

It is an arithmetic number, because the mean of its divisors is an integer number (3430448496).

Almost surely, 2^111201021010 is an apocalyptic number.

111201021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111201021010 is a deficient number, since it is larger than the sum of its proper divisors (108347682734).

111201021010 is a wasteful number, since it uses less digits than its factorization.

111201021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74899.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111201021010 its reverse (10120102111), we get a palindrome (121321123121).

The spelling of 111201021010 in words is "one hundred eleven billion, two hundred one million, twenty-one thousand, ten".