22102155412 has 24 divisors (see below), whose sum is σ = 39267486720. Its totient is φ = 10884088800.

The previous prime is 22102155409. The next prime is 22102155419. The reversal of 22102155412 is 21455120122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102155419) 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, 78964 + ... + 224587.

It is an arithmetic number, because the mean of its divisors is an integer number (1636145280).

Almost surely, 2^22102155412 is an apocalyptic number.

It is an amenable number.

22102155412 is a deficient number, since it is larger than the sum of its proper divisors (17165331308).

22102155412 is a wasteful number, since it uses less digits than its factorization.

22102155412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303831 (or 303829 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 22102155412 its reverse (21455120122), we get a palindrome (43557275534).

The spelling of 22102155412 in words is "twenty-two billion, one hundred two million, one hundred fifty-five thousand, four hundred twelve".