202122110122010 has 144 divisors (see below), whose sum is σ = 418617125654400. Its totient is φ = 70219380022272.

The previous prime is 202122110121979. The next prime is 202122110122019. The reversal of 202122110122010 is 10221011221202.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 202122110122010.

It is not an unprimeable number, because it can be changed into a prime (202122110122019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1738193051 + ... + 1738309329.

It is an arithmetic number, because the mean of its divisors is an integer number (2907063372600).

Almost surely, 2^{202122110122010} is an apocalyptic number.

202122110122010 is an abundant number, since it is smaller than the sum of its proper divisors (216495015532390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202122110122010 is a wasteful number, since it uses less digits than its factorization.

202122110122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119905 (or 119875 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 202122110122010 its reverse (10221011221202), we get a palindrome (212343121343212).

The spelling of 202122110122010 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred ten million, one hundred twenty-two thousand, ten".