202120010122 has 4 divisors (see below), whose sum is σ = 303180015186. Its totient is φ = 101060005060.

The previous prime is 202120010107. The next prime is 202120010143. The reversal of 202120010122 is 221010021202.

It is a happy number.

202120010122 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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., 199640069721 + 2479940401 = 446811^2 + 49799^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50530002529 + ... + 50530002532.

Almost surely, 2^202120010122 is an apocalyptic number.

202120010122 is a deficient number, since it is larger than the sum of its proper divisors (101060005064).

202120010122 is a wasteful number, since it uses less digits than its factorization.

202120010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101060005063.

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

Adding to 202120010122 its reverse (221010021202), we get a palindrome (423130031324).

The spelling of 202120010122 in words is "two hundred two billion, one hundred twenty million, ten thousand, one hundred twenty-two".