22212230545 has 16 divisors (see below), whose sum is σ = 26799962112. Its totient is φ = 17673082560.

The previous prime is 22212230527. The next prime is 22212230569. The reversal of 22212230545 is 54503221222.

It is not a de Polignac number, because 22212230545 - 2¹³ = 22212222353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1220815 + ... + 1238875.

It is an arithmetic number, because the mean of its divisors is an integer number (1674997632).

Almost surely, 2^22212230545 is an apocalyptic number.

It is an amenable number.

22212230545 is a deficient number, since it is larger than the sum of its proper divisors (4587731567).

22212230545 is a wasteful number, since it uses less digits than its factorization.

22212230545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19392.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22212230545 its reverse (54503221222), we get a palindrome (76715451767).

The spelling of 22212230545 in words is "twenty-two billion, two hundred twelve million, two hundred thirty thousand, five hundred forty-five".