22218050 has 24 divisors (see below), whose sum is σ = 41461632. Its totient is φ = 8858000.

The previous prime is 22218037. The next prime is 22218059. The reversal of 22218050 is 5081222.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22218059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21035 + ... + 22065.

It is an arithmetic number, because the mean of its divisors is an integer number (1727568).

Almost surely, 2^22218050 is an apocalyptic number.

22218050 is a deficient number, since it is larger than the sum of its proper divisors (19243582).

22218050 is a wasteful number, since it uses less digits than its factorization.

22218050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 22218050 is about 4713.6026561432. The cubic root of 22218050 is about 281.1266257234.

Adding to 22218050 its reverse (5081222), we get a palindrome (27299272).

The spelling of 22218050 in words is "twenty-two million, two hundred eighteen thousand, fifty".