220102202100 has 144 divisors (see below), whose sum is σ = 696295434240. Its totient is φ = 53237308800.

The previous prime is 220102202093. The next prime is 220102202143. The reversal of 220102202100 is 1202201022.

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

It is a congruent number.

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, 1386621 + ... + 1537179.

It is an arithmetic number, because the mean of its divisors is an integer number (4835384960).

Almost surely, 2^220102202100 is an apocalyptic number.

220102202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220102202100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348147717120).

220102202100 is an abundant number, since it is smaller than the sum of its proper divisors (476193232140).

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

220102202100 is a wasteful number, since it uses less digits than its factorization.

220102202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151030 (or 151023 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 220102202100 its reverse (1202201022), we get a palindrome (221304403122).

The spelling of 220102202100 in words is "two hundred twenty billion, one hundred two million, two hundred two thousand, one hundred".