202202121010122 has 24 divisors (see below), whose sum is σ = 438128966507076. Its totient is φ = 67396957621056.

The previous prime is 202202121010039. The next prime is 202202121010177. The reversal of 202202121010122 is 221010121202202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 197394884973441 + 4807236036681 = 14049729^2 + 2192541^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202202121010095 and 202202121010104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 312115953 + ... + 312763124.

Almost surely, 2^{202202121010122} is an apocalyptic number.

202202121010122 is an abundant number, since it is smaller than the sum of its proper divisors (235926845496954).

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

202202121010122 is a wasteful number, since it uses less digits than its factorization.

202202121010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624897062 (or 624897059 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202202121010122 its reverse (221010121202202), we get a palindrome (423212242212324).

The spelling of 202202121010122 in words is "two hundred two trillion, two hundred two billion, one hundred twenty-one million, ten thousand, one hundred twenty-two".