212442202340244 has 36 divisors (see below), whose sum is σ = 537007795277044. Its totient is φ = 70813920131712.

The previous prime is 212442202340239. The next prime is 212442202340297. The reversal of 212442202340244 is 442043202244212.

212442202340244 is a `hidden beast` number, since 2 + 1 + 2 + 4 + 4 + 2 + 202 + 3 + 402 + 44 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 70397805315600 + 142044397024644 = 8390340^2 + 11918238^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 212442202340199 and 212442202340208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12154104 + ... + 23929200.

Almost surely, 2^{212442202340244} is an apocalyptic number.

It is an amenable number.

212442202340244 is an abundant number, since it is smaller than the sum of its proper divisors (324565592936800).

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

212442202340244 is a wasteful number, since it uses less digits than its factorization.

212442202340244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12276264 (or 12276259 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 36.

Adding to 212442202340244 its reverse (442043202244212), we get a palindrome (654485404584456).

The spelling of 212442202340244 in words is "two hundred twelve trillion, four hundred forty-two billion, two hundred two million, three hundred forty thousand, two hundred forty-four".