215122030 has 16 divisors (see below), whose sum is σ = 389188800. Its totient is φ = 85611232.

The previous prime is 215122007. The next prime is 215122049. The reversal of 215122030 is 30221512.

It is a junction number, because it is equal to n+sod(n) for n = 215121995 and 215122013.

It is a congruent number.

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, 52630 + ... + 56569.

It is an arithmetic number, because the mean of its divisors is an integer number (24324300).

Almost surely, 2^215122030 is an apocalyptic number.

215122030 is a deficient number, since it is larger than the sum of its proper divisors (174066770).

215122030 is a wasteful number, since it uses less digits than its factorization.

215122030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109403.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 215122030 is about 14667.0388967917. The cubic root of 215122030 is about 599.1859608815.

Adding to 215122030 its reverse (30221512), we get a palindrome (245343542).

The spelling of 215122030 in words is "two hundred fifteen million, one hundred twenty-two thousand, thirty".