22150161 has 24 divisors (see below), whose sum is σ = 35852544. Its totient is φ = 13059360.

The previous prime is 22150159. The next prime is 22150169. The reversal of 22150161 is 16105122.

It is not a de Polignac number, because 22150161 - 2¹ = 22150159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22150169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 640 + ... + 6686.

It is an arithmetic number, because the mean of its divisors is an integer number (1493856).

Almost surely, 2^22150161 is an apocalyptic number.

It is an amenable number.

22150161 is a deficient number, since it is larger than the sum of its proper divisors (13702383).

22150161 is a wasteful number, since it uses less digits than its factorization.

22150161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6101 (or 6098 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 22150161 is about 4706.3957547151. The cubic root of 22150161 is about 280.8399987460.

Adding to 22150161 its reverse (16105122), we get a palindrome (38255283).

The spelling of 22150161 in words is "twenty-two million, one hundred fifty thousand, one hundred sixty-one".