2100202201220 has 24 divisors (see below), whose sum is σ = 4410641223744. Its totient is φ = 840039623136.

The previous prime is 2100202201217. The next prime is 2100202201243. The reversal of 2100202201220 is 221022020012.

It is a junction number, because it is equal to n+sod(n) for n = 2100202201195 and 2100202201204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2159504 + ... + 2977223.

It is an arithmetic number, because the mean of its divisors is an integer number (183776717656).

Almost surely, 2^{2100202201220} is an apocalyptic number.

2100202201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100202201220 is an abundant number, since it is smaller than the sum of its proper divisors (2310439022524).

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

2100202201220 is a wasteful number, since it uses less digits than its factorization.

2100202201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5157179 (or 5157177 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2100202201220 its reverse (221022020012), we get a palindrome (2321224221232).

The spelling of 2100202201220 in words is "two trillion, one hundred billion, two hundred two million, two hundred one thousand, two hundred twenty".