22221150 has 48 divisors (see below), whose sum is σ = 62984064. Its totient is φ = 5078880.

The previous prime is 22221109. The next prime is 22221161. The reversal of 22221150 is 5112222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9532 + ... + 11631.

It is an arithmetic number, because the mean of its divisors is an integer number (1312168).

Almost surely, 2^22221150 is an apocalyptic number.

22221150 is an abundant number, since it is smaller than the sum of its proper divisors (40762914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22221150 is a wasteful number, since it uses less digits than its factorization.

22221150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21185 (or 21180 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 22221150 is about 4713.9314801978. The cubic root of 22221150 is about 281.1396999583.

Adding to 22221150 its reverse (5112222), we get a palindrome (27333372).

The spelling of 22221150 in words is "twenty-two million, two hundred twenty-one thousand, one hundred fifty".