22530345212 has 6 divisors (see below), whose sum is σ = 39428104128. Its totient is φ = 11265172604.

The previous prime is 22530345151. The next prime is 22530345247. The reversal of 22530345212 is 21254303522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2816293148 + ... + 2816293155.

It is an arithmetic number, because the mean of its divisors is an integer number (6571350688).

Almost surely, 2^22530345212 is an apocalyptic number.

It is an amenable number.

22530345212 is a deficient number, since it is larger than the sum of its proper divisors (16897758916).

22530345212 is a wasteful number, since it uses less digits than its factorization.

22530345212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632586307 (or 5632586305 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 22530345212 its reverse (21254303522), we get a palindrome (43784648734).

The spelling of 22530345212 in words is "twenty-two billion, five hundred thirty million, three hundred forty-five thousand, two hundred twelve".