212922410725 has 6 divisors (see below), whose sum is σ = 264023789330. Its totient is φ = 170337928560.

The previous prime is 212922410699. The next prime is 212922410803. The reversal of 212922410725 is 527014229212.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 72747799524 + 140174611201 = 269718^2 + 374399^2 .

It is not a de Polignac number, because 212922410725 - 2⁹ = 212922410213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4258448190 + ... + 4258448239.

Almost surely, 2^212922410725 is an apocalyptic number.

212922410725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212922410725 is a deficient number, since it is larger than the sum of its proper divisors (51101378605).

212922410725 is an equidigital number, since it uses as much as digits as its factorization.

212922410725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8516896439 (or 8516896434 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 212922410725 its reverse (527014229212), we get a palindrome (739936639937).

The spelling of 212922410725 in words is "two hundred twelve billion, nine hundred twenty-two million, four hundred ten thousand, seven hundred twenty-five".