215839222098 has 32 divisors (see below), whose sum is σ = 432259027200. Its totient is φ = 71849698896.

The previous prime is 215839222097. The next prime is 215839222103. The reversal of 215839222098 is 890222938512.

It is a self number, because there is not a number n which added to its sum of digits gives 215839222098.

It is not an unprimeable number, because it can be changed into a prime (215839222091) 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 15 ways as a sum of consecutive naturals, for example, 24469933 + ... + 24478751.

It is an arithmetic number, because the mean of its divisors is an integer number (13508094600).

Almost surely, 2^215839222098 is an apocalyptic number.

215839222098 is an abundant number, since it is smaller than the sum of its proper divisors (216419805102).

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

215839222098 is a wasteful number, since it uses less digits than its factorization.

215839222098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13846.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 215839222098 in words is "two hundred fifteen billion, eight hundred thirty-nine million, two hundred twenty-two thousand, ninety-eight".