22154244022 has 8 divisors (see below), whose sum is σ = 33423455376. Its totient is φ = 11013092232.

The previous prime is 22154243989. The next prime is 22154244029. The reversal of 22154244022 is 22044245122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22154244029) 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, 32014458 + ... + 32015149.

It is an arithmetic number, because the mean of its divisors is an integer number (4177931922).

Almost surely, 2^22154244022 is an apocalyptic number.

22154244022 is a deficient number, since it is larger than the sum of its proper divisors (11269211354).

22154244022 is a wasteful number, since it uses less digits than its factorization.

22154244022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64029782.

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 22154244022 its reverse (22044245122), we get a palindrome (44198489144).

The spelling of 22154244022 in words is "twenty-two billion, one hundred fifty-four million, two hundred forty-four thousand, twenty-two".