22212055 has 8 divisors (see below), whose sum is σ = 26701632. Its totient is φ = 17738208.

The previous prime is 22212049. The next prime is 22212077. The reversal of 22212055 is 55021222.

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 22212055 - 2⁷ = 22211927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559 + ... + 6688.

It is an arithmetic number, because the mean of its divisors is an integer number (3337704).

Almost surely, 2^22212055 is an apocalyptic number.

22212055 is a deficient number, since it is larger than the sum of its proper divisors (4489577).

22212055 is an equidigital number, since it uses as much as digits as its factorization.

22212055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7865.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22212055 is about 4712.9666877668. The cubic root of 22212055 is about 281.1013383898.

Adding to 22212055 its reverse (55021222), we get a palindrome (77233277).

The spelling of 22212055 in words is "twenty-two million, two hundred twelve thousand, fifty-five".