22154112 has 48 divisors (see below), whose sum is σ = 63754080. Its totient is φ = 7384320.

The previous prime is 22154081. The next prime is 22154131. The reversal of 22154112 is 21145122.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8464 + ... + 10767.

It is an arithmetic number, because the mean of its divisors is an integer number (1328210).

Almost surely, 2^22154112 is an apocalyptic number.

It is an amenable number.

22154112 is an abundant number, since it is smaller than the sum of its proper divisors (41599968).

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

22154112 is a wasteful number, since it uses less digits than its factorization.

22154112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19251 (or 19236 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 22154112 is about 4706.8154839552. The cubic root of 22154112 is about 280.8566958838.

Adding to 22154112 its reverse (21145122), we get a palindrome (43299234).

The spelling of 22154112 in words is "twenty-two million, one hundred fifty-four thousand, one hundred twelve".