22742220154 has 16 divisors (see below), whose sum is σ = 34396132320. Its totient is φ = 11276956080.

The previous prime is 22742220139. The next prime is 22742220211. The reversal of 22742220154 is 45102224722.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386212 + ... + 441184.

It is an arithmetic number, because the mean of its divisors is an integer number (2149758270).

Almost surely, 2^22742220154 is an apocalyptic number.

22742220154 is a deficient number, since it is larger than the sum of its proper divisors (11653912166).

22742220154 is a wasteful number, since it uses less digits than its factorization.

22742220154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56685.

The product of its (nonzero) digits is 17920, while the sum is 31.

Adding to 22742220154 its reverse (45102224722), we get a palindrome (67844444876).

The spelling of 22742220154 in words is "twenty-two billion, seven hundred forty-two million, two hundred twenty thousand, one hundred fifty-four".