100221211012111 has 32 divisors (see below), whose sum is σ = 115726275624960. Its totient is φ = 85014197949024.

The previous prime is 100221211012061. The next prime is 100221211012151. The reversal of 100221211012111 is 111210112122001.

It is a cyclic number.

It is not a de Polignac number, because 100221211012111 - 2²⁵ = 100221177457679 is a prime.

It is a super-2 number, since 2×100221211012111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221211012151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9108529536 + ... + 9108540538.

It is an arithmetic number, because the mean of its divisors is an integer number (3616446113280).

Almost surely, 2^{100221211012111} is an apocalyptic number.

100221211012111 is a deficient number, since it is larger than the sum of its proper divisors (15505064612849).

100221211012111 is a wasteful number, since it uses less digits than its factorization.

100221211012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18235.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 100221211012111 its reverse (111210112122001), we get a palindrome (211431323134112).

The spelling of 100221211012111 in words is "one hundred trillion, two hundred twenty-one billion, two hundred eleven million, twelve thousand, one hundred eleven".