202001221002122 has 16 divisors (see below), whose sum is σ = 319863191172000. Its totient is φ = 95410620439920.

The previous prime is 202001221002107. The next prime is 202001221002131. The reversal of 202001221002122 is 221200122100202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 202001221002122.

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, 7615777004 + ... + 7615803527.

It is an arithmetic number, because the mean of its divisors is an integer number (19991449448250).

Almost surely, 2^{202001221002122} is an apocalyptic number.

202001221002122 is a deficient number, since it is larger than the sum of its proper divisors (117861970169878).

202001221002122 is a wasteful number, since it uses less digits than its factorization.

202001221002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15231580901.

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

Adding to 202001221002122 its reverse (221200122100202), we get a palindrome (423201343102324).

The spelling of 202001221002122 in words is "two hundred two trillion, one billion, two hundred twenty-one million, two thousand, one hundred twenty-two".