212301212121200 has 60 divisors (see below), whose sum is σ = 517237516586448. Its totient is φ = 83724421670400.

The previous prime is 212301212121169. The next prime is 212301212121211. The reversal of 212301212121200 is 2121212103212.

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, 3737668997 + ... + 3737725796.

Almost surely, 2^{212301212121200} is an apocalyptic number.

212301212121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212301212121200 is an abundant number, since it is smaller than the sum of its proper divisors (304936304465248).

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

212301212121200 is a wasteful number, since it uses less digits than its factorization.

212301212121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475394882 (or 7475394871 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 212301212121200 its reverse (2121212103212), we get a palindrome (214422424224412).

The spelling of 212301212121200 in words is "two hundred twelve trillion, three hundred one billion, two hundred twelve million, one hundred twenty-one thousand, two hundred".