22145002 has 16 divisors (see below), whose sum is σ = 37122624. Its totient is φ = 9820000.

The previous prime is 22144979. The next prime is 22145027. The reversal of 22145002 is 20054122.

It is a super-2 number, since 2×22145002² = 980802227160008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11374 + ... + 13177.

It is an arithmetic number, because the mean of its divisors is an integer number (2320164).

Almost surely, 2^22145002 is an apocalyptic number.

22145002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22145002 is a deficient number, since it is larger than the sum of its proper divisors (14977622).

22145002 is a wasteful number, since it uses less digits than its factorization.

22145002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24605.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 22145002 is about 4705.8476388425. The cubic root of 22145002 is about 280.8181935463.

Adding to 22145002 its reverse (20054122), we get a palindrome (42199124).

The spelling of 22145002 in words is "twenty-two million, one hundred forty-five thousand, two".