215120622 has 24 divisors (see below), whose sum is σ = 454081896. Its totient is φ = 67932144.

The previous prime is 215120599. The next prime is 215120623. The reversal of 215120622 is 226021512.

It is a happy number.

215120622 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215120623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47493 + ... + 51824.

It is an arithmetic number, because the mean of its divisors is an integer number (18920079).

Almost surely, 2^215120622 is an apocalyptic number.

215120622 is an abundant number, since it is smaller than the sum of its proper divisors (238961274).

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

215120622 is a wasteful number, since it uses less digits than its factorization.

215120622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99360 (or 99341 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 215120622 is about 14666.9908979313. The cubic root of 215120622 is about 599.1846536302.

The spelling of 215120622 in words is "two hundred fifteen million, one hundred twenty thousand, six hundred twenty-two".