22154044000 has 96 divisors (see below), whose sum is σ = 59381011872. Its totient is φ = 8056000000.

The previous prime is 22154043971. The next prime is 22154044001. The reversal of 22154044000 is 44045122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22154044001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207751 + ... + 295750.

It is an arithmetic number, because the mean of its divisors is an integer number (618552207).

Almost surely, 2^22154044000 is an apocalyptic number.

22154044000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22154044000 is an abundant number, since it is smaller than the sum of its proper divisors (37226967872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22154044000 is a wasteful number, since it uses less digits than its factorization.

22154044000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503537 (or 503519 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 22154044000 its reverse (44045122), we get a palindrome (22198089122).

The spelling of 22154044000 in words is "twenty-two billion, one hundred fifty-four million, forty-four thousand".