201122120121002 has 4 divisors (see below), whose sum is σ = 301683180181506. Its totient is φ = 100561060060500.

The previous prime is 201122120120989. The next prime is 201122120121031. The reversal of 201122120121002 is 200121021221102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194922672483841 + 6199447637161 = 13961471^2 + 2489869^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280530030249 + ... + 50280530030252.

Almost surely, 2^{201122120121002} is an apocalyptic number.

201122120121002 is a deficient number, since it is larger than the sum of its proper divisors (100561060060504).

201122120121002 is a wasteful number, since it uses less digits than its factorization.

201122120121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100561060060503.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201122120121002 its reverse (200121021221102), we get a palindrome (401243141342104).

The spelling of 201122120121002 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred twenty million, one hundred twenty-one thousand, two".