22530212444 has 12 divisors (see below), whose sum is σ = 40171794264. Its totient is φ = 11052556944.

The previous prime is 22530212429. The next prime is 22530212449. The reversal of 22530212444 is 44421203522.

It is a super-2 number, since 2×22530212444² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22530212449) 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, 53137082 + ... + 53137505.

It is an arithmetic number, because the mean of its divisors is an integer number (3347649522).

Almost surely, 2^22530212444 is an apocalyptic number.

It is an amenable number.

22530212444 is a deficient number, since it is larger than the sum of its proper divisors (17641581820).

22530212444 is a wasteful number, since it uses less digits than its factorization.

22530212444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106274644 (or 106274642 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 22530212444 its reverse (44421203522), we get a palindrome (66951415966).

The spelling of 22530212444 in words is "twenty-two billion, five hundred thirty million, two hundred twelve thousand, four hundred forty-four".