212012152 has 16 divisors (see below), whose sum is σ = 433661400. Its totient is φ = 96369120.

The previous prime is 212012123. The next prime is 212012197. The reversal of 212012152 is 251210212.

It is a happy number.

It is a super-2 number, since 2×212012152² = 89898305191342208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204527 + ... + 1204702.

Almost surely, 2^212012152 is an apocalyptic number.

212012152 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212012152 is an abundant number, since it is smaller than the sum of its proper divisors (221649248).

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

212012152 is a wasteful number, since it uses less digits than its factorization.

212012152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409246 (or 2409242 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 212012152 is about 14560.6370739745. The cubic root of 212012152 is about 596.2845884999.

Adding to 212012152 its reverse (251210212), we get a palindrome (463222364).

The spelling of 212012152 in words is "two hundred twelve million, twelve thousand, one hundred fifty-two".