22150220 has 12 divisors (see below), whose sum is σ = 46515504. Its totient is φ = 8860080.

The previous prime is 22150211. The next prime is 22150223. The reversal of 22150220 is 2205122.

It is a junction number, because it is equal to n+sod(n) for n = 22150195 and 22150204.

It is not an unprimeable number, because it can be changed into a prime (22150223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553736 + ... + 553775.

It is an arithmetic number, because the mean of its divisors is an integer number (3876292).

Almost surely, 2^22150220 is an apocalyptic number.

22150220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22150220 is an abundant number, since it is smaller than the sum of its proper divisors (24365284).

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

22150220 is a wasteful number, since it uses less digits than its factorization.

22150220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107520 (or 1107518 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 22150220 is about 4706.4020227771. The cubic root of 22150220 is about 280.8402480978.

Adding to 22150220 its reverse (2205122), we get a palindrome (24355342).

The spelling of 22150220 in words is "twenty-two million, one hundred fifty thousand, two hundred twenty".