2422185881 has 4 divisors (see below), whose sum is σ = 2422361652. Its totient is φ = 2422010112.

The previous prime is 2422185863. The next prime is 2422185907. The reversal of 2422185881 is 1885812242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1282785856 + 1139400025 = 35816^2 + 33755^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422185881 - 2¹⁰ = 2422184857 is a prime.

It is a super-2 number, since 2×2422185881² = 11733968884231492322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2422185811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65276 + ... + 95421.

It is an arithmetic number, because the mean of its divisors is an integer number (605590413).

Almost surely, 2^2422185881 is an apocalyptic number.

It is an amenable number.

2422185881 is a deficient number, since it is larger than the sum of its proper divisors (175771).

2422185881 is a wasteful number, since it uses less digits than its factorization.

2422185881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175770.

The product of its digits is 81920, while the sum is 41.

The square root of 2422185881 is about 49215.7076653379. The cubic root of 2422185881 is about 1342.9787970920.

The spelling of 2422185881 in words is "two billion, four hundred twenty-two million, one hundred eighty-five thousand, eight hundred eighty-one".