212291626810 has 32 divisors (see below), whose sum is σ = 382756401792. Its totient is φ = 84776448960.

The previous prime is 212291626741. The next prime is 212291626843. The reversal of 212291626810 is 18626192212.

It is a happy number.

212291626810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212291626810² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16111525 + ... + 16124695.

It is an arithmetic number, because the mean of its divisors is an integer number (11961137556).

Almost surely, 2^212291626810 is an apocalyptic number.

212291626810 is a deficient number, since it is larger than the sum of its proper divisors (170464774982).

212291626810 is a wasteful number, since it uses less digits than its factorization.

212291626810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15718.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 212291626810 in words is "two hundred twelve billion, two hundred ninety-one million, six hundred twenty-six thousand, eight hundred ten".