22022154 has 48 divisors (see below), whose sum is σ = 59492160. Its totient is φ = 5719680.

The previous prime is 22022153. The next prime is 22022167. The reversal of 22022154 is 45122022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6559 + ... + 9330.

It is an arithmetic number, because the mean of its divisors is an integer number (1239420).

Almost surely, 2^22022154 is an apocalyptic number.

22022154 is an abundant number, since it is smaller than the sum of its proper divisors (37470006).

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

22022154 is a wasteful number, since it uses less digits than its factorization.

22022154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15915 (or 15912 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 22022154 is about 4692.7767899187. The cubic root of 22022154 is about 280.2979566322.

Adding to 22022154 its reverse (45122022), we get a palindrome (67144176).

It can be divided in two parts, 2202 and 2154, that added together give a square (4356 = 66²).

The spelling of 22022154 in words is "twenty-two million, twenty-two thousand, one hundred fifty-four".