22214381 has 8 divisors (see below), whose sum is σ = 25476864. Its totient is φ = 18974160.

The previous prime is 22214371. The next prime is 22214399. The reversal of 22214381 is 18341222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22214381 - 2⁶ = 22214317 is a prime.

It is a super-2 number, since 2×22214381² = 986957446426322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22214341) 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, 3365 + ... + 7466.

It is an arithmetic number, because the mean of its divisors is an integer number (3184608).

Almost surely, 2^22214381 is an apocalyptic number.

It is an amenable number.

22214381 is a deficient number, since it is larger than the sum of its proper divisors (3262483).

22214381 is a wasteful number, since it uses less digits than its factorization.

22214381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11131.

The product of its digits is 768, while the sum is 23.

The square root of 22214381 is about 4713.2134473202. The cubic root of 22214381 is about 281.1111501623. Note that the first 4 decimals are identical.

The spelling of 22214381 in words is "twenty-two million, two hundred fourteen thousand, three hundred eighty-one".