212369212 has 24 divisors (see below), whose sum is σ = 423061632. Its totient is φ = 92334000.

The previous prime is 212369207. The next prime is 212369221. The reversal of 212369212 is 212963212.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103914 + ... + 105937.

It is an arithmetic number, because the mean of its divisors is an integer number (17627568).

Almost surely, 2^212369212 is an apocalyptic number.

212369212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212369212 is a deficient number, since it is larger than the sum of its proper divisors (210692420).

212369212 is a wasteful number, since it uses less digits than its factorization.

212369212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209889 (or 209887 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 212369212 is about 14572.8930552585. The cubic root of 212369212 is about 596.6191447367.

The spelling of 212369212 in words is "two hundred twelve million, three hundred sixty-nine thousand, two hundred twelve".