212157843617030 has 16 divisors (see below), whose sum is σ = 382173205679424. Its totient is φ = 84798895853760.

The previous prime is 212157843617011. The next prime is 212157843617059. The reversal of 212157843617030 is 30716348751212.

212157843617030 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 2×212157843617030² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212157843617030.

It is a congruent number.

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, 8030185262 + ... + 8030211681.

It is an arithmetic number, because the mean of its divisors is an integer number (23885825354964).

Almost surely, 2^{212157843617030} is an apocalyptic number.

212157843617030 is a deficient number, since it is larger than the sum of its proper divisors (170015362062394).

212157843617030 is a wasteful number, since it uses less digits than its factorization.

212157843617030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16060398271.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 212157843617030 in words is "two hundred twelve trillion, one hundred fifty-seven billion, eight hundred forty-three million, six hundred seventeen thousand, thirty".