122113215 has 48 divisors (see below), whose sum is σ = 244228608. Its totient is φ = 55286208.

The previous prime is 122113213. The next prime is 122113231. The reversal of 122113215 is 512311221.

It is not a de Polignac number, because 122113215 - 2¹ = 122113213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122113213) 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 47 ways as a sum of consecutive naturals, for example, 31894 + ... + 35516.

It is an arithmetic number, because the mean of its divisors is an integer number (5088096).

Almost surely, 2^122113215 is an apocalyptic number.

122113215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122113215 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

122113215 is a wasteful number, since it uses less digits than its factorization.

122113215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748 (or 3745 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 122113215 is about 11050.4848309927. The cubic root of 122113215 is about 496.1209368972.

Adding to 122113215 its reverse (512311221), we get a palindrome (634424436).

The spelling of 122113215 in words is "one hundred twenty-two million, one hundred thirteen thousand, two hundred fifteen".