212699440457425 has 12 divisors (see below), whose sum is σ = 264312075573936. Its totient is φ = 169795185006800.

The previous prime is 212699440457293. The next prime is 212699440457431. The reversal of 212699440457425 is 524754044996212.

It is not a de Polignac number, because 212699440457425 - 2²⁵ = 212699406902993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9109172071 + ... + 9109195420.

It is an arithmetic number, because the mean of its divisors is an integer number (22026006297828).

Almost surely, 2^{212699440457425} is an apocalyptic number.

212699440457425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212699440457425 is a deficient number, since it is larger than the sum of its proper divisors (51612635116511).

212699440457425 is a wasteful number, since it uses less digits than its factorization.

212699440457425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18218367968 (or 18218367963 counting only the distinct ones).

The product of its (nonzero) digits is 174182400, while the sum is 64.

The spelling of 212699440457425 in words is "two hundred twelve trillion, six hundred ninety-nine billion, four hundred forty million, four hundred fifty-seven thousand, four hundred twenty-five".