22022021012120 has 128 divisors (see below), whose sum is σ = 54658726387200. Its totient is φ = 7948092201984.

The previous prime is 22022021012107. The next prime is 22022021012161. The reversal of 22022021012120 is 2121012022022.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1369319 + ... + 6776361.

It is an arithmetic number, because the mean of its divisors is an integer number (427021299900).

Almost surely, 2^{22022021012120} is an apocalyptic number.

22022021012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22022021012120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27329363193600).

22022021012120 is an abundant number, since it is smaller than the sum of its proper divisors (32636705375080).

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

22022021012120 is a wasteful number, since it uses less digits than its factorization.

22022021012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407329 (or 5407325 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22022021012120 its reverse (2121012022022), we get a palindrome (24143033034142).

The spelling of 22022021012120 in words is "twenty-two trillion, twenty-two billion, twenty-one million, twelve thousand, one hundred twenty".