20202121122 has 16 divisors (see below), whose sum is σ = 42780962592. Its totient is φ = 6337920320.

The previous prime is 20202121117. The next prime is 20202121123. The reversal of 20202121122 is 22112120202.

It is not an unprimeable number, because it can be changed into a prime (20202121123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99029904 + ... + 99030107.

It is an arithmetic number, because the mean of its divisors is an integer number (2673810162).

Almost surely, 2^20202121122 is an apocalyptic number.

20202121122 is an abundant number, since it is smaller than the sum of its proper divisors (22578841470).

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

20202121122 is a wasteful number, since it uses less digits than its factorization.

20202121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198060033.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20202121122 its reverse (22112120202), we get a palindrome (42314241324).

The spelling of 20202121122 in words is "twenty billion, two hundred two million, one hundred twenty-one thousand, one hundred twenty-two".