20222020121212 has 120 divisors (see below), whose sum is σ = 44477040503056. Its totient is φ = 7996831121664.

The previous prime is 20222020121201. The next prime is 20222020121249. The reversal of 20222020121212 is 21212102022202.

It is a self number, because there is not a number n which added to its sum of digits gives 20222020121212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 337944448 + ... + 338004280.

Almost surely, 2^{20222020121212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20222020121212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22238520251528).

20222020121212 is an abundant number, since it is smaller than the sum of its proper divisors (24255020381844).

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

20222020121212 is a wasteful number, since it uses less digits than its factorization.

20222020121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62585 (or 62562 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20222020121212 its reverse (21212102022202), we get a palindrome (41434122143414).

The spelling of 20222020121212 in words is "twenty trillion, two hundred twenty-two billion, twenty million, one hundred twenty-one thousand, two hundred twelve".