212370815899 has 8 divisors (see below), whose sum is σ = 231836063040. Its totient is φ = 192932037000.

The previous prime is 212370815893. The next prime is 212370815941. The reversal of 212370815899 is 998518073212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212370815899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212370815893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6600277 + ... + 6632374.

It is an arithmetic number, because the mean of its divisors is an integer number (28979507880).

Almost surely, 2^212370815899 is an apocalyptic number.

212370815899 is a deficient number, since it is larger than the sum of its proper divisors (19465247141).

212370815899 is a wasteful number, since it uses less digits than its factorization.

212370815899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13234121.

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 212370815899 in words is "two hundred twelve billion, three hundred seventy million, eight hundred fifteen thousand, eight hundred ninety-nine".