212560988 has 12 divisors (see below), whose sum is σ = 372128232. Its totient is φ = 106238640.

The previous prime is 212560949. The next prime is 212560991. The reversal of 212560988 is 889065212.

It is a super-2 number, since 2×212560988² = 90364347239072288, 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, 2843 + ... + 20813.

It is an arithmetic number, because the mean of its divisors is an integer number (31010686).

Almost surely, 2^212560988 is an apocalyptic number.

It is an amenable number.

212560988 is a deficient number, since it is larger than the sum of its proper divisors (159567244).

212560988 is a wasteful number, since it uses less digits than its factorization.

212560988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20932 (or 20930 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 212560988 is about 14579.4714581839. The cubic root of 212560988 is about 596.7986792504.

The spelling of 212560988 in words is "two hundred twelve million, five hundred sixty thousand, nine hundred eighty-eight".