212021222200 has 48 divisors (see below), whose sum is σ = 521946370080. Its totient is φ = 79819752960.

The previous prime is 212021222173. The next prime is 212021222263. The reversal of 212021222200 is 2222120212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31176192 + ... + 31182991.

It is an arithmetic number, because the mean of its divisors is an integer number (10873882710).

Almost surely, 2^212021222200 is an apocalyptic number.

212021222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021222200 is an abundant number, since it is smaller than the sum of its proper divisors (309925147880).

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

212021222200 is a wasteful number, since it uses less digits than its factorization.

212021222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62359216 (or 62359207 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212021222200 its reverse (2222120212), we get a palindrome (214243342412).

It can be divided in two parts, 2120212 and 22200, that added together give a palindrome (2142412).

The spelling of 212021222200 in words is "two hundred twelve billion, twenty-one million, two hundred twenty-two thousand, two hundred".