22013005 has 12 divisors (see below), whose sum is σ = 30728700. Its totient is φ = 15094464.

The previous prime is 22012981. The next prime is 22013021. The reversal of 22013005 is 50031022.

It can be written as a sum of positive squares in 2 ways, for example, as 10055241 + 11957764 = 3171^2 + 3458^2 .

It is not a de Polignac number, because 22013005 - 2¹¹ = 22010957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44680 + ... + 45169.

It is an arithmetic number, because the mean of its divisors is an integer number (2560725).

Almost surely, 2^22013005 is an apocalyptic number.

It is an amenable number.

22013005 is a deficient number, since it is larger than the sum of its proper divisors (8715695).

22013005 is an equidigital number, since it uses as much as digits as its factorization.

22013005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89868 (or 89861 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 22013005 is about 4691.8018926634. The cubic root of 22013005 is about 280.2591351010.

Adding to 22013005 its reverse (50031022), we get a palindrome (72044027).

It can be divided in two parts, 220 and 13005, that added together give a square (13225 = 115²).

The spelling of 22013005 in words is "twenty-two million, thirteen thousand, five".