202220121121212 has 24 divisors (see below), whose sum is σ = 473682929637456. Its totient is φ = 67144424132608.

The previous prime is 202220121121211. The next prime is 202220121121219. The reversal of 202220121121212 is 212121121022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220121121211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32785360263 + ... + 32785366430.

It is an arithmetic number, because the mean of its divisors is an integer number (19736788734894).

Almost surely, 2^{202220121121212} is an apocalyptic number.

It is an amenable number.

202220121121212 is an abundant number, since it is smaller than the sum of its proper divisors (271462808516244).

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

202220121121212 is a wasteful number, since it uses less digits than its factorization.

202220121121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65570726957 (or 65570726955 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 202220121121212 its reverse (212121121022202), we get a palindrome (414341242143414).

The spelling of 202220121121212 in words is "two hundred two trillion, two hundred twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred twelve".