212518996 has 12 divisors (see below), whose sum is σ = 372116052. Its totient is φ = 106200128.

The previous prime is 212518993. The next prime is 212518997. The reversal of 212518996 is 699815212.

It can be written as a sum of positive squares in 2 ways, for example, as 162307600 + 50211396 = 12740^2 + 7086^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212518993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6235 + ... + 21538.

It is an arithmetic number, because the mean of its divisors is an integer number (31009671).

Almost surely, 2^212518996 is an apocalyptic number.

It is an amenable number.

212518996 is a deficient number, since it is larger than the sum of its proper divisors (159597056).

212518996 is a wasteful number, since it uses less digits than its factorization.

212518996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29690 (or 29688 counting only the distinct ones).

The product of its digits is 77760, while the sum is 43.

The square root of 212518996 is about 14578.0312799774. The cubic root of 212518996 is about 596.7593769293.

The spelling of 212518996 in words is "two hundred twelve million, five hundred eighteen thousand, nine hundred ninety-six".