100220001312 has 24 divisors (see below), whose sum is σ = 263077503696. Its totient is φ = 33406667072.

The previous prime is 100220001307. The next prime is 100220001319. The reversal of 100220001312 is 213100022001.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (100220001319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521979078 + ... + 521979269.

It is an arithmetic number, because the mean of its divisors is an integer number (10961562654).

Almost surely, 2^100220001312 is an apocalyptic number.

100220001312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100220001312 is an abundant number, since it is smaller than the sum of its proper divisors (162857502384).

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

100220001312 is a wasteful number, since it uses less digits than its factorization.

100220001312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043958360 (or 1043958352 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 100220001312 its reverse (213100022001), we get a palindrome (313320023313).

The spelling of 100220001312 in words is "one hundred billion, two hundred twenty million, one thousand, three hundred twelve".