121214131215 has 32 divisors (see below), whose sum is σ = 200911491072. Its totient is φ = 62339424000.

The previous prime is 121214131201. The next prime is 121214131219. The reversal of 121214131215 is 512131412121.

It is a happy number.

It is not a de Polignac number, because 121214131215 - 2²⁴ = 121197353999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121214131219) 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, 333171 + ... + 594500.

It is an arithmetic number, because the mean of its divisors is an integer number (6278484096).

Almost surely, 2^121214131215 is an apocalyptic number.

121214131215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121214131215 is a deficient number, since it is larger than the sum of its proper divisors (79697359857).

121214131215 is a wasteful number, since it uses less digits than its factorization.

121214131215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927991.

The product of its digits is 480, while the sum is 24.

Adding to 121214131215 its reverse (512131412121), we get a palindrome (633345543336).

The spelling of 121214131215 in words is "one hundred twenty-one billion, two hundred fourteen million, one hundred thirty-one thousand, two hundred fifteen".