122231215 has 4 divisors (see below), whose sum is σ = 146677464. Its totient is φ = 97784968.

The previous prime is 122231189. The next prime is 122231279. The reversal of 122231215 is 512132221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122231215 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122231192 and 122231201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12223117 + ... + 12223126.

It is an arithmetic number, because the mean of its divisors is an integer number (36669366).

Almost surely, 2^122231215 is an apocalyptic number.

122231215 is a deficient number, since it is larger than the sum of its proper divisors (24446249).

122231215 is an equidigital number, since it uses as much as digits as its factorization.

122231215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24446248.

The product of its digits is 240, while the sum is 19.

The square root of 122231215 is about 11055.8226740483. The cubic root of 122231215 is about 496.2806887141.

Adding to 122231215 its reverse (512132221), we get a palindrome (634363436).

The spelling of 122231215 in words is "one hundred twenty-two million, two hundred thirty-one thousand, two hundred fifteen".