121345135205122 has 16 divisors (see below), whose sum is σ = 183462415284960. Its totient is φ = 60191557724448.

The previous prime is 121345135205083. The next prime is 121345135205143. The reversal of 121345135205122 is 221502531543121.

It is a happy number.

121345135205122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139803408 + ... + 140668699.

It is an arithmetic number, because the mean of its divisors is an integer number (11466400955310).

Almost surely, 2^{121345135205122} is an apocalyptic number.

121345135205122 is a deficient number, since it is larger than the sum of its proper divisors (62117280079838).

121345135205122 is a wasteful number, since it uses less digits than its factorization.

121345135205122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280473825.

The product of its (nonzero) digits is 72000, while the sum is 37.

Adding to 121345135205122 its reverse (221502531543121), we get a palindrome (342847666748243).

The spelling of 121345135205122 in words is "one hundred twenty-one trillion, three hundred forty-five billion, one hundred thirty-five million, two hundred five thousand, one hundred twenty-two".