100111001221112 has 32 divisors (see below), whose sum is σ = 214524774414720. Its totient is φ = 42904474735200.

The previous prime is 100111001221103. The next prime is 100111001221117. The reversal of 100111001221112 is 211122100111001.

It is a super-2 number, since 2×100111001221112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111001221117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5282987 + ... + 15104037.

It is an arithmetic number, because the mean of its divisors is an integer number (6703899200460).

Almost surely, 2^{100111001221112} is an apocalyptic number.

It is an amenable number.

100111001221112 is an abundant number, since it is smaller than the sum of its proper divisors (114413773193608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100111001221112 is a wasteful number, since it uses less digits than its factorization.

100111001221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10003091 (or 10003087 counting only the distinct ones).

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

Adding to 100111001221112 its reverse (211122100111001), we get a palindrome (311233101332113).

The spelling of 100111001221112 in words is "one hundred trillion, one hundred eleven billion, one million, two hundred twenty-one thousand, one hundred twelve".