2022156345621 has 8 divisors (see below), whose sum is σ = 2698675261600. Its totient is φ = 1346870830032.

The previous prime is 2022156345619. The next prime is 2022156345623. The reversal of 2022156345621 is 1265436512202.

It is an interprime number because it is at equal distance from previous prime (2022156345619) and next prime (2022156345623).

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

It is not a de Polignac number, because 2022156345621 - 2¹ = 2022156345619 is a prime.

It is a super-2 number, since 2×2022156345621² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2022156345621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022156345623) 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, 308346271 + ... + 308352828.

It is an arithmetic number, because the mean of its divisors is an integer number (337334407700).

Almost surely, 2^{2022156345621} is an apocalyptic number.

It is an amenable number.

2022156345621 is a deficient number, since it is larger than the sum of its proper divisors (676518915979).

2022156345621 is a wasteful number, since it uses less digits than its factorization.

2022156345621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616700195.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 2022156345621 in words is "two trillion, twenty-two billion, one hundred fifty-six million, three hundred forty-five thousand, six hundred twenty-one".