220001000100 has 144 divisors (see below), whose sum is σ = 770262450048. Its totient is φ = 47327938560.

The previous prime is 220001000099. The next prime is 220001000113. The reversal of 220001000100 is 1000100022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

220001000100 is a modest number, since divided by 1000100 gives 2200 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3045547 + ... + 3116946.

It is an arithmetic number, because the mean of its divisors is an integer number (5349044792).

Almost surely, 2^220001000100 is an apocalyptic number.

220001000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220001000100 is an abundant number, since it is smaller than the sum of its proper divisors (550261449948).

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

220001000100 is a wasteful number, since it uses less digits than its factorization.

220001000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6162534 (or 6162527 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 220001000100 its reverse (1000100022), we get a palindrome (221001100122).

The spelling of 220001000100 in words is "two hundred twenty billion, one million, one hundred", and thus it is an aban number.