202002001122122 has 4 divisors (see below), whose sum is σ = 303003001683186. Its totient is φ = 101001000561060.

The previous prime is 202002001122121. The next prime is 202002001122161. The reversal of 202002001122122 is 221221100200202.

It is a happy number.

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., 123601229876881 + 78400771245241 = 11117609^2 + 8854421^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202002001122122.

It is not an unprimeable number, because it can be changed into a prime (202002001122121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500500280529 + ... + 50500500280532.

Almost surely, 2^{202002001122122} is an apocalyptic number.

202002001122122 is a deficient number, since it is larger than the sum of its proper divisors (101001000561064).

202002001122122 is a wasteful number, since it uses less digits than its factorization.

202002001122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101001000561063.

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

Adding to 202002001122122 its reverse (221221100200202), we get a palindrome (423223101322324).

The spelling of 202002001122122 in words is "two hundred two trillion, two billion, one million, one hundred twenty-two thousand, one hundred twenty-two".