15222130 has 64 divisors (see below), whose sum is σ = 34898688. Its totient is φ = 4642560.

The previous prime is 15222101. The next prime is 15222131. The reversal of 15222130 is 3122251.

It is not an unprimeable number, because it can be changed into a prime (15222131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40624 + ... + 40996.

It is an arithmetic number, because the mean of its divisors is an integer number (545292).

Almost surely, 2^15222130 is an apocalyptic number.

15222130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15222130 is an abundant number, since it is smaller than the sum of its proper divisors (19676558).

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

15222130 is a wasteful number, since it uses less digits than its factorization.

15222130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 15222130 is about 3901.5548182744. The cubic root of 15222130 is about 247.8326242293.

Adding to 15222130 its reverse (3122251), we get a palindrome (18344381).

It can be divided in two parts, 152221 and 30, that added together give a palindrome (152251).

The spelling of 15222130 in words is "fifteen million, two hundred twenty-two thousand, one hundred thirty".