215544150122 has 16 divisors (see below), whose sum is σ = 378097380672. Its totient is φ = 90227783520.

The previous prime is 215544150043. The next prime is 215544150161. The reversal of 215544150122 is 221051445512.

It is a super-2 number, since 2×215544150122² (a number of 23 digits) 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, 179022779 + ... + 179023982.

It is an arithmetic number, because the mean of its divisors is an integer number (23631086292).

Almost surely, 2^215544150122 is an apocalyptic number.

215544150122 is a deficient number, since it is larger than the sum of its proper divisors (162553230550).

215544150122 is a wasteful number, since it uses less digits than its factorization.

215544150122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358046813.

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 215544150122 its reverse (221051445512), we get a palindrome (436595595634).

The spelling of 215544150122 in words is "two hundred fifteen billion, five hundred forty-four million, one hundred fifty thousand, one hundred twenty-two".