202012120002122 has 16 divisors (see below), whose sum is σ = 303384624639432. Its totient is φ = 100883920538880.

The previous prime is 202012120002107. The next prime is 202012120002131. The reversal of 202012120002122 is 221200021210202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 199945567124521 + 2066552877601 = 14140211^2 + 1437551^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202012120002122.

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, 44299718 + ... + 48646574.

Almost surely, 2^{202012120002122} is an apocalyptic number.

202012120002122 is a deficient number, since it is larger than the sum of its proper divisors (101372504637310).

202012120002122 is a wasteful number, since it uses less digits than its factorization.

202012120002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4374953.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202012120002122 its reverse (221200021210202), we get a palindrome (423212141212324).

The spelling of 202012120002122 in words is "two hundred two trillion, twelve billion, one hundred twenty million, two thousand, one hundred twenty-two".