202001002221122 has 32 divisors (see below), whose sum is σ = 332559805152960. Its totient is φ = 91452231904320.

The previous prime is 202001002221079. The next prime is 202001002221127. The reversal of 202001002221122 is 221122200100202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 202001002221122.

It is not an unprimeable number, because it can be changed into a prime (202001002221127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142115528 + ... + 143529875.

It is an arithmetic number, because the mean of its divisors is an integer number (10392493911030).

Almost surely, 2^{202001002221122} is an apocalyptic number.

202001002221122 is a deficient number, since it is larger than the sum of its proper divisors (130558802931838).

202001002221122 is a wasteful number, since it uses less digits than its factorization.

202001002221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285645938.

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

Adding to 202001002221122 its reverse (221122200100202), we get a palindrome (423123202321324).

The spelling of 202001002221122 in words is "two hundred two trillion, one billion, two million, two hundred twenty-one thousand, one hundred twenty-two".