212200221000 has 128 divisors (see below), whose sum is σ = 684894787200. Its totient is φ = 54635436800.

The previous prime is 212200220941. The next prime is 212200221047. The reversal of 212200221000 is 122002212.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1132542 + ... + 1306541.

It is an arithmetic number, because the mean of its divisors is an integer number (5350740525).

Almost surely, 2^212200221000 is an apocalyptic number.

212200221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212200221000 is an abundant number, since it is smaller than the sum of its proper divisors (472694566200).

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

212200221000 is a wasteful number, since it uses less digits than its factorization.

212200221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2439136 (or 2439122 counting only the distinct ones).

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

Adding to 212200221000 its reverse (122002212), we get a palindrome (212322223212).

The spelling of 212200221000 in words is "two hundred twelve billion, two hundred million, two hundred twenty-one thousand".