122120455215 has 32 divisors (see below), whose sum is σ = 213320422656. Its totient is φ = 59164162560.

The previous prime is 122120455097. The next prime is 122120455217. The reversal of 122120455215 is 512554021221.

It is not a de Polignac number, because 122120455215 - 2¹² = 122120451119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120455217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71317 + ... + 499326.

It is an arithmetic number, because the mean of its divisors is an integer number (6666263208).

Almost surely, 2^122120455215 is an apocalyptic number.

122120455215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122120455215 is a deficient number, since it is larger than the sum of its proper divisors (91199967441).

122120455215 is a wasteful number, since it uses less digits than its factorization.

122120455215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571959.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 122120455215 its reverse (512554021221), we get a palindrome (634674476436).

The spelling of 122120455215 in words is "one hundred twenty-two billion, one hundred twenty million, four hundred fifty-five thousand, two hundred fifteen".