100112221011 has 64 divisors (see below), whose sum is σ = 152799077376. Its totient is φ = 57763238400.

The previous prime is 100112221007. The next prime is 100112221021. The reversal of 100112221011 is 110122211001.

It is not a de Polignac number, because 100112221011 - 2² = 100112221007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100112221021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14669346 + ... + 14676168.

It is an arithmetic number, because the mean of its divisors is an integer number (2387485584).

Almost surely, 2^100112221011 is an apocalyptic number.

100112221011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100112221011 is a deficient number, since it is larger than the sum of its proper divisors (52686856365).

100112221011 is a wasteful number, since it uses less digits than its factorization.

100112221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7132.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 100112221011 its reverse (110122211001), we get a palindrome (210234432012).

It can be divided in two parts, 100112 and 221011, that added together give a palindrome (321123).

The spelling of 100112221011 in words is "one hundred billion, one hundred twelve million, two hundred twenty-one thousand, eleven".