20202221221122 has 16 divisors (see below), whose sum is σ = 40405206851712. Its totient is φ = 6733946338800.

The previous prime is 20202221221081. The next prime is 20202221221141. The reversal of 20202221221122 is 22112212220202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31506538 + ... + 32141349.

It is an arithmetic number, because the mean of its divisors is an integer number (2525325428232).

Almost surely, 2^{20202221221122} is an apocalyptic number.

20202221221122 is an abundant number, since it is smaller than the sum of its proper divisors (20202985630590).

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

20202221221122 is a wasteful number, since it uses less digits than its factorization.

20202221221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63700793.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20202221221122 its reverse (22112212220202), we get a palindrome (42314433441324).

The spelling of 20202221221122 in words is "twenty trillion, two hundred two billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".