212122300 has 36 divisors (see below), whose sum is σ = 495716536. Its totient is φ = 78321600.

The previous prime is 212122297. The next prime is 212122373. The reversal of 212122300 is 3221212.

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 80286 + ... + 82885.

Almost surely, 2^212122300 is an apocalyptic number.

212122300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212122300 is an abundant number, since it is smaller than the sum of its proper divisors (283594236).

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

212122300 is a wasteful number, since it uses less digits than its factorization.

212122300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163198 (or 163191 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 212122300 is about 14564.4189722762. The cubic root of 212122300 is about 596.3878344431.

Adding to 212122300 its reverse (3221212), we get a palindrome (215343512).

The spelling of 212122300 in words is "two hundred twelve million, one hundred twenty-two thousand, three hundred".