212451253049 has 16 divisors (see below), whose sum is σ = 245191040640. Its totient is φ = 180317508480.

The previous prime is 212451253031. The next prime is 212451253051. The reversal of 212451253049 is 940352154212.

It is a cyclic number.

It is not a de Polignac number, because 212451253049 - 2³⁶ = 143731776313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212451253349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64619 + ... + 655040.

It is an arithmetic number, because the mean of its divisors is an integer number (15324440040).

Almost surely, 2^212451253049 is an apocalyptic number.

It is an amenable number.

212451253049 is a deficient number, since it is larger than the sum of its proper divisors (32739787591).

212451253049 is a wasteful number, since it uses less digits than its factorization.

212451253049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720080.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 212451253049 in words is "two hundred twelve billion, four hundred fifty-one million, two hundred fifty-three thousand, forty-nine".