212902034745 has 16 divisors (see below), whose sum is σ = 341388656640. Its totient is φ = 113299284864.

The previous prime is 212902034663. The next prime is 212902034747. The reversal of 212902034745 is 547430209212.

It is not a de Polignac number, because 212902034745 - 2¹³ = 212902026553 is a prime.

It is a super-2 number, since 2×212902034745² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212902034747) 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, 15522105 + ... + 15535814.

It is an arithmetic number, because the mean of its divisors is an integer number (21336791040).

Almost surely, 2^212902034745 is an apocalyptic number.

It is an amenable number.

212902034745 is a deficient number, since it is larger than the sum of its proper divisors (128486621895).

212902034745 is a wasteful number, since it uses less digits than its factorization.

212902034745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31058384.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 212902034745 in words is "two hundred twelve billion, nine hundred two million, thirty-four thousand, seven hundred forty-five".