122215537 has 8 divisors (see below), whose sum is σ = 127647360. Its totient is φ = 116793600.

The previous prime is 122215523. The next prime is 122215553. The reversal of 122215537 is 735512221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122215537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122215517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35164 + ... + 38482.

It is an arithmetic number, because the mean of its divisors is an integer number (15955920).

Almost surely, 2^122215537 is an apocalyptic number.

It is an amenable number.

122215537 is a deficient number, since it is larger than the sum of its proper divisors (5431823).

122215537 is a wasteful number, since it uses less digits than its factorization.

122215537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4943.

The product of its digits is 4200, while the sum is 28.

The square root of 122215537 is about 11055.1136131656. The cubic root of 122215537 is about 496.2594693081.

Adding to 122215537 its reverse (735512221), we get a palindrome (857727758).

The spelling of 122215537 in words is "one hundred twenty-two million, two hundred fifteen thousand, five hundred thirty-seven".