212222233121200 has 60 divisors (see below), whose sum is σ = 510306890911488. Its totient is φ = 84815140768000.

The previous prime is 212222233121177. The next prime is 212222233121201. The reversal of 212222233121200 is 2121332222212.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (212222233121201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230015527 + ... + 230936326.

Almost surely, 2^{212222233121200} is an apocalyptic number.

212222233121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212222233121200 is an abundant number, since it is smaller than the sum of its proper divisors (298084657790288).

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

212222233121200 is a wasteful number, since it uses less digits than its factorization.

212222233121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460953022 (or 460953011 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 212222233121200 its reverse (2121332222212), we get a palindrome (214343565343412).

The spelling of 212222233121200 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred thirty-three million, one hundred twenty-one thousand, two hundred".