210243554604122 has 16 divisors (see below), whose sum is σ = 339635952849480. Its totient is φ = 97032129809472.

The previous prime is 210243554604119. The next prime is 210243554604131. The reversal of 210243554604122 is 221406455342012.

It can be written as a sum of positive squares in 4 ways, for example, as 200667878101441 + 9575676502681 = 14165729^2 + 3094459^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210243554604122.

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, 139106033 + ... + 140609300.

Almost surely, 2^{210243554604122} is an apocalyptic number.

210243554604122 is a deficient number, since it is larger than the sum of its proper divisors (129392398245358).

210243554604122 is a wasteful number, since it uses less digits than its factorization.

210243554604122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279744257.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 210243554604122 in words is "two hundred ten trillion, two hundred forty-three billion, five hundred fifty-four million, six hundred four thousand, one hundred twenty-two".