20102200220 has 24 divisors (see below), whose sum is σ = 42256090800. Its totient is φ = 8032980992.

The previous prime is 20102200219. The next prime is 20102200231. The reversal of 20102200220 is 2200220102.

It is a congruent number.

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, 472805 + ... + 513564.

It is an arithmetic number, because the mean of its divisors is an integer number (1760670450).

Almost surely, 2^20102200220 is an apocalyptic number.

20102200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102200220 is an abundant number, since it is smaller than the sum of its proper divisors (22153890580).

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

20102200220 is a wasteful number, since it uses less digits than its factorization.

20102200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987397 (or 987395 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20102200220 its reverse (2200220102), we get a palindrome (22302420322).

The spelling of 20102200220 in words is "twenty billion, one hundred two million, two hundred thousand, two hundred twenty".