212623355290 has 32 divisors (see below), whose sum is σ = 413753569920. Its totient is φ = 78395408064.

The previous prime is 212623355279. The next prime is 212623355291. The reversal of 212623355290 is 92553326212.

212623355290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212623355291) by changing a digit.

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, 15115542 + ... + 15129601.

It is an arithmetic number, because the mean of its divisors is an integer number (12929799060).

Almost surely, 2^212623355290 is an apocalyptic number.

212623355290 is a deficient number, since it is larger than the sum of its proper divisors (201130214630).

212623355290 is a wasteful number, since it uses less digits than its factorization.

212623355290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30245206.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 212623355290 in words is "two hundred twelve billion, six hundred twenty-three million, three hundred fifty-five thousand, two hundred ninety".