212332550 has 48 divisors (see below), whose sum is σ = 436391712. Its totient is φ = 76454400.

The previous prime is 212332541. The next prime is 212332583. The reversal of 212332550 is 55233212.

It is a super-2 number, since 2×212332550² = 90170223579005000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14120 + ... + 24980.

It is an arithmetic number, because the mean of its divisors is an integer number (9091494).

Almost surely, 2^212332550 is an apocalyptic number.

212332550 is an abundant number, since it is smaller than the sum of its proper divisors (224059162).

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

212332550 is a wasteful number, since it uses less digits than its factorization.

212332550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10913 (or 10908 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 212332550 is about 14571.6351175838. The cubic root of 212332550 is about 596.5848106483.

Adding to 212332550 its reverse (55233212), we get a palindrome (267565762).

The spelling of 212332550 in words is "two hundred twelve million, three hundred thirty-two thousand, five hundred fifty".