22145404122 has 24 divisors (see below), whose sum is σ = 48018983220. Its totient is φ = 7376066880.

The previous prime is 22145404097. The next prime is 22145404129. The reversal of 22145404122 is 22140454122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19566694161 + 2578709961 = 139881^2 + 50781^2 .

It is not an unprimeable number, because it can be changed into a prime (22145404129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 454029 + ... + 500432.

Almost surely, 2^22145404122 is an apocalyptic number.

22145404122 is an abundant number, since it is smaller than the sum of its proper divisors (25873579098).

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

22145404122 is a wasteful number, since it uses less digits than its factorization.

22145404122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955758 (or 955755 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 22145404122 its reverse (22140454122), we get a palindrome (44285858244).

The spelling of 22145404122 in words is "twenty-two billion, one hundred forty-five million, four hundred four thousand, one hundred twenty-two".