212210121222200 has 48 divisors (see below), whose sum is σ = 493410240315000. Its totient is φ = 84880313697920.

The previous prime is 212210121222199. The next prime is 212210121222233. The reversal of 212210121222200 is 2222121012212.

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

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, 18783275 + ... + 27878874.

Almost surely, 2^{212210121222200} is an apocalyptic number.

212210121222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212210121222200 is an abundant number, since it is smaller than the sum of its proper divisors (281200119092800).

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

212210121222200 is a wasteful number, since it uses less digits than its factorization.

212210121222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46684904 (or 46684895 counting only the distinct ones).

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

Adding to 212210121222200 its reverse (2222121012212), we get a palindrome (214432242234412).

The spelling of 212210121222200 in words is "two hundred twelve trillion, two hundred ten billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred".