202120001122 has 24 divisors (see below), whose sum is σ = 328402807380. Its totient is φ = 93255664320.

The previous prime is 202120001117. The next prime is 202120001159. The reversal of 202120001122 is 221100021202.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2453121841 + 199666879281 = 49529^2 + 446841^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 954672 + ... + 1147012.

Almost surely, 2^202120001122 is an apocalyptic number.

202120001122 is a deficient number, since it is larger than the sum of its proper divisors (126282806258).

202120001122 is a wasteful number, since it uses less digits than its factorization.

202120001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195478 (or 195465 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202120001122 its reverse (221100021202), we get a palindrome (423220022324).

The spelling of 202120001122 in words is "two hundred two billion, one hundred twenty million, one thousand, one hundred twenty-two".