215690416122 has 16 divisors (see below), whose sum is σ = 443039774112. Its totient is φ = 69953648400.

The previous prime is 215690416111. The next prime is 215690416133. The reversal of 215690416122 is 221614096512.

It is an interprime number because it is at equal distance from previous prime (215690416111) and next prime (215690416133).

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, 485789004 + ... + 485789447.

It is an arithmetic number, because the mean of its divisors is an integer number (27689985882).

Almost surely, 2^215690416122 is an apocalyptic number.

215690416122 is an abundant number, since it is smaller than the sum of its proper divisors (227349357990).

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

215690416122 is a wasteful number, since it uses less digits than its factorization.

215690416122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971578493.

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 215690416122 in words is "two hundred fifteen billion, six hundred ninety million, four hundred sixteen thousand, one hundred twenty-two".