22214551 has 8 divisors (see below), whose sum is σ = 23306400. Its totient is φ = 21144480.

The previous prime is 22214539. The next prime is 22214567. The reversal of 22214551 is 15541222.

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

It is not a de Polignac number, because 22214551 - 2⁵ = 22214519 is a prime.

It is a super-2 number, since 2×22214551² = 986972552263202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22214501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3336 + ... + 7453.

It is an arithmetic number, because the mean of its divisors is an integer number (2913300).

Almost surely, 2^22214551 is an apocalyptic number.

22214551 is a deficient number, since it is larger than the sum of its proper divisors (1091849).

22214551 is a wasteful number, since it uses less digits than its factorization.

22214551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10889.

The product of its digits is 800, while the sum is 22.

The square root of 22214551 is about 4713.2314816907. The cubic root of 22214551 is about 281.1118672470. Note that the first 3 decimals are identical.

Adding to 22214551 its reverse (15541222), we get a palindrome (37755773).

The spelling of 22214551 in words is "twenty-two million, two hundred fourteen thousand, five hundred fifty-one".