22154822 has 8 divisors (see below), whose sum is σ = 33372000. Its totient is φ = 11030824.

The previous prime is 22154809. The next prime is 22154833. The reversal of 22154822 is 22845122.

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

It is a super-2 number, since 2×22154822² = 981672275703368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22154791 and 22154800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22697 + ... + 23652.

It is an arithmetic number, because the mean of its divisors is an integer number (4171500).

Almost surely, 2^22154822 is an apocalyptic number.

22154822 is a deficient number, since it is larger than the sum of its proper divisors (11217178).

22154822 is a wasteful number, since it uses less digits than its factorization.

22154822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46590.

The product of its digits is 2560, while the sum is 26.

The square root of 22154822 is about 4706.8909058953. The cubic root of 22154822 is about 280.8596961714.

Adding to 22154822 its reverse (22845122), we get a palindrome (44999944).

The spelling of 22154822 in words is "twenty-two million, one hundred fifty-four thousand, eight hundred twenty-two".