20225130 has 32 divisors (see below), whose sum is σ = 48686400. Its totient is φ = 5377152.

The previous prime is 20225123. The next prime is 20225137. The reversal of 20225130 is 3152202.

It is an interprime number because it is at equal distance from previous prime (20225123) and next prime (20225137).

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

It is not an unprimeable number, because it can be changed into a prime (20225137) 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, 11766 + ... + 13374.

It is an arithmetic number, because the mean of its divisors is an integer number (1521450).

Almost surely, 2^20225130 is an apocalyptic number.

20225130 is an abundant number, since it is smaller than the sum of its proper divisors (28461270).

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

20225130 is a wasteful number, since it uses less digits than its factorization.

20225130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 20225130 is about 4497.2358176996. The cubic root of 20225130 is about 272.4564585482.

Adding to 20225130 its reverse (3152202), we get a palindrome (23377332).

The spelling of 20225130 in words is "twenty million, two hundred twenty-five thousand, one hundred thirty".