212211230 has 32 divisors (see below), whose sum is σ = 476236800. Its totient is φ = 66143520.

The previous prime is 212211193. The next prime is 212211269. The reversal of 212211230 is 32112212.

It is a happy number.

212211230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212211230² = 90067212276225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 15 ways as a sum of consecutive naturals, for example, 137030 + ... + 138569.

It is an arithmetic number, because the mean of its divisors is an integer number (14882400).

Almost surely, 2^212211230 is an apocalyptic number.

212211230 is an abundant number, since it is smaller than the sum of its proper divisors (264025570).

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

212211230 is a wasteful number, since it uses less digits than its factorization.

212211230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275624.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 212211230 is about 14567.4716406108. The cubic root of 212211230 is about 596.4711658674.

Adding to 212211230 its reverse (32112212), we get a palindrome (244323442).

The spelling of 212211230 in words is "two hundred twelve million, two hundred eleven thousand, two hundred thirty".