215024122 has 16 divisors (see below), whose sum is σ = 334881792. Its totient is φ = 103437360.

The previous prime is 215024119. The next prime is 215024129. The reversal of 215024122 is 221420512.

It is a self number, because there is not a number n which added to its sum of digits gives 215024122.

It is not an unprimeable number, because it can be changed into a prime (215024129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703 + ... + 20749.

It is an arithmetic number, because the mean of its divisors is an integer number (20930112).

Almost surely, 2^215024122 is an apocalyptic number.

215024122 is a deficient number, since it is larger than the sum of its proper divisors (119857670).

215024122 is a wasteful number, since it uses less digits than its factorization.

215024122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20253.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 215024122 is about 14663.7008289176. The cubic root of 215024122 is about 599.0950450397.

Adding to 215024122 its reverse (221420512), we get a palindrome (436444634).

The spelling of 215024122 in words is "two hundred fifteen million, twenty-four thousand, one hundred twenty-two".