212135025520052 has 12 divisors (see below), whose sum is σ = 371879685122820. Its totient is φ = 105883686913536.

The previous prime is 212135025520043. The next prime is 212135025520069. The reversal of 212135025520052 is 250025520531212.

It can be written as a sum of positive squares in 2 ways, for example, as 206647410055696 + 5487615464356 = 14375236^2 + 2342566^2 .

It is a super-2 number, since 2×212135025520052² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212135025519994 and 212135025520021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45956459027 + ... + 45956463642.

It is an arithmetic number, because the mean of its divisors is an integer number (30989973760235).

Almost surely, 2^{212135025520052} is an apocalyptic number.

It is an amenable number.

212135025520052 is a deficient number, since it is larger than the sum of its proper divisors (159744659602768).

212135025520052 is a wasteful number, since it uses less digits than its factorization.

212135025520052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91912923250 (or 91912923248 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The spelling of 212135025520052 in words is "two hundred twelve trillion, one hundred thirty-five billion, twenty-five million, five hundred twenty thousand, fifty-two".