212135511513444 has 24 divisors (see below), whose sum is σ = 495159829479168. Its totient is φ = 70686555845280.

The previous prime is 212135511513403. The next prime is 212135511513637. The reversal of 212135511513444 is 444315115531212.

It is a super-2 number, since 2×212135511513444² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212135511513396 and 212135511513405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3160130772 + ... + 3160197899.

It is an arithmetic number, because the mean of its divisors is an integer number (20631659561632).

Almost surely, 2^{212135511513444} is an apocalyptic number.

It is an amenable number.

212135511513444 is an abundant number, since it is smaller than the sum of its proper divisors (283024317965724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212135511513444 is a wasteful number, since it uses less digits than its factorization.

212135511513444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6320331475 (or 6320331473 counting only the distinct ones).

The product of its digits is 288000, while the sum is 42.

The spelling of 212135511513444 in words is "two hundred twelve trillion, one hundred thirty-five billion, five hundred eleven million, five hundred thirteen thousand, four hundred forty-four".