212210221212200 has 96 divisors (see below), whose sum is σ = 504055737475200. Its totient is φ = 83067927720960.

The previous prime is 212210221212193. The next prime is 212210221212203. The reversal of 212210221212200 is 2212122012212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (212210221212203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57643922 + ... + 61214721.

It is an arithmetic number, because the mean of its divisors is an integer number (5250580598700).

Almost surely, 2^{212210221212200} is an apocalyptic number.

212210221212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212210221212200 is an abundant number, since it is smaller than the sum of its proper divisors (291845516263000).

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

212210221212200 is a wasteful number, since it uses less digits than its factorization.

212210221212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118858851 (or 118858842 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212210221212200 its reverse (2212122012212), we get a palindrome (214422343224412).

The spelling of 212210221212200 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twenty-one million, two hundred twelve thousand, two hundred".