2022112121220 has 144 divisors (see below), whose sum is σ = 6347667755520. Its totient is φ = 520437254400.

The previous prime is 2022112121209. The next prime is 2022112121303. The reversal of 2022112121220 is 221212112202.

It is a happy number.

2022112121220 is a `hidden beast` number, since 20 + 2 + 211 + 212 + 1 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2022112121193 and 2022112121202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13870105 + ... + 14015135.

It is an arithmetic number, because the mean of its divisors is an integer number (44081026080).

Almost surely, 2^{2022112121220} is an apocalyptic number.

2022112121220 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 2022112121220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3173833877760).

2022112121220 is an abundant number, since it is smaller than the sum of its proper divisors (4325555634300).

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

2022112121220 is a wasteful number, since it uses less digits than its factorization.

2022112121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147746 (or 147741 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2022112121220 its reverse (221212112202), we get a palindrome (2243324233422).

The spelling of 2022112121220 in words is "two trillion, twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, two hundred twenty".