22021150 has 24 divisors (see below), whose sum is σ = 42374520. Its totient is φ = 8504160.

The previous prime is 22021123. The next prime is 22021151. The reversal of 22021150 is 5112022.

It is a self number, because there is not a number n which added to its sum of digits gives 22021150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021151) 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, 6144 + ... + 9043.

It is an arithmetic number, because the mean of its divisors is an integer number (1765605).

Almost surely, 2^22021150 is an apocalyptic number.

22021150 is a deficient number, since it is larger than the sum of its proper divisors (20353370).

22021150 is a wasteful number, since it uses less digits than its factorization.

22021150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15228 (or 15223 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 22021150 is about 4692.6698157872. The cubic root of 22021150 is about 280.2936969304.

Adding to 22021150 its reverse (5112022), we get a palindrome (27133172).

The spelling of 22021150 in words is "twenty-two million, twenty-one thousand, one hundred fifty".