2022112220021 has 8 divisors (see below), whose sum is σ = 2023376355000. Its totient is φ = 2020848425920.

The previous prime is 2022112219979. The next prime is 2022112220041. The reversal of 2022112220021 is 1200222112202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 788702071921 + 1233410148100 = 888089^2 + 1110590^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2022112220021 - 2³⁰ = 2021038478197 is a prime.

It is a super-2 number, since 2×2022112220021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022112220041) 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, 12343355 + ... + 12506103.

It is an arithmetic number, because the mean of its divisors is an integer number (252922044375).

Almost surely, 2^{2022112220021} is an apocalyptic number.

It is an amenable number.

2022112220021 is a deficient number, since it is larger than the sum of its proper divisors (1264134979).

2022112220021 is a wasteful number, since it uses less digits than its factorization.

2022112220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170439.

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

Adding to 2022112220021 its reverse (1200222112202), we get a palindrome (3222334332223).

The spelling of 2022112220021 in words is "two trillion, twenty-two billion, one hundred twelve million, two hundred twenty thousand, twenty-one".