100012221212100 has 72 divisors (see below), whose sum is σ = 290643445524768. Its totient is φ = 26552436979200.

The previous prime is 100012221212087. The next prime is 100012221212209. The reversal of 100012221212100 is 1212122210001.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 100012221212100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 734236021 + ... + 734372220.

Almost surely, 2^{100012221212100} is an apocalyptic number.

100012221212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100012221212100 is an abundant number, since it is smaller than the sum of its proper divisors (190631224312668).

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

100012221212100 is a wasteful number, since it uses less digits than its factorization.

100012221212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468608485 (or 1468608478 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100012221212100 its reverse (1212122210001), we get a palindrome (101224343422101).

The spelling of 100012221212100 in words is "one hundred trillion, twelve billion, two hundred twenty-one million, two hundred twelve thousand, one hundred".