22263021 has 24 divisors (see below), whose sum is σ = 35751456. Its totient is φ = 13235040.

The previous prime is 22262993. The next prime is 22263037. The reversal of 22263021 is 12036222.

It is not a de Polignac number, because 22263021 - 2⁶ = 22262957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22262985 and 22263003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22263061) 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, 3126 + ... + 7368.

It is an arithmetic number, because the mean of its divisors is an integer number (1489644).

Almost surely, 2^22263021 is an apocalyptic number.

It is an amenable number.

22263021 is a deficient number, since it is larger than the sum of its proper divisors (13488435).

22263021 is a wasteful number, since it uses less digits than its factorization.

22263021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313 (or 4310 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 22263021 is about 4718.3705873956. The cubic root of 22263021 is about 281.3161716894.

Adding to 22263021 its reverse (12036222), we get a palindrome (34299243).

The spelling of 22263021 in words is "twenty-two million, two hundred sixty-three thousand, twenty-one".