202121220222002 has 8 divisors (see below), whose sum is σ = 303646121039916. Its totient is φ = 100905846542032.

The previous prime is 202121220221959. The next prime is 202121220222013. The reversal of 202121220222002 is 200222022121202.

It can be written as a sum of positive squares in 2 ways, for example, as 200806159430881 + 1315060791121 = 14170609^2 + 1146761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77381782853 + ... + 77381785464.

Almost surely, 2^{202121220222002} is an apocalyptic number.

202121220222002 is a deficient number, since it is larger than the sum of its proper divisors (101524900817914).

202121220222002 is a wasteful number, since it uses less digits than its factorization.

202121220222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154763568972.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202121220222002 its reverse (200222022121202), we get a palindrome (402343242343204).

The spelling of 202121220222002 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, two".