212812560851 has 8 divisors (see below), whose sum is σ = 242253033984. Its totient is φ = 185054400520.

The previous prime is 212812560817. The next prime is 212812560871. The reversal of 212812560851 is 158065218212.

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

It is not a de Polignac number, because 212812560851 - 2¹⁸ = 212812298707 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212812560799 and 212812560808.

It is not an unprimeable number, because it can be changed into a prime (212812560811) 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, 420577931 + ... + 420578436.

It is an arithmetic number, because the mean of its divisors is an integer number (30281629248).

Almost surely, 2^212812560851 is an apocalyptic number.

212812560851 is a deficient number, since it is larger than the sum of its proper divisors (29440473133).

212812560851 is a wasteful number, since it uses less digits than its factorization.

212812560851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841156401.

The product of its (nonzero) digits is 76800, while the sum is 41.

The spelling of 212812560851 in words is "two hundred twelve billion, eight hundred twelve million, five hundred sixty thousand, eight hundred fifty-one".