22020270 has 32 divisors (see below), whose sum is σ = 55958688. Its totient is φ = 5526528.

The previous prime is 22020227. The next prime is 22020277. The reversal of 22020270 is 7202022.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21079 + ... + 22098.

It is an arithmetic number, because the mean of its divisors is an integer number (1748709).

Almost surely, 2^22020270 is an apocalyptic number.

22020270 is an abundant number, since it is smaller than the sum of its proper divisors (33938418).

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

22020270 is a wasteful number, since it uses less digits than its factorization.

22020270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43204.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 22020270 is about 4692.5760515947. The cubic root of 22020270 is about 280.2899632208.

Adding to 22020270 its reverse (7202022), we get a palindrome (29222292).

The spelling of 22020270 in words is "twenty-two million, twenty thousand, two hundred seventy".