121340422445 has 16 divisors (see below), whose sum is σ = 159733062720. Its totient is φ = 87754569600.

The previous prime is 121340422439. The next prime is 121340422457. The reversal of 121340422445 is 544224043121.

It is not a de Polignac number, because 121340422445 - 2⁴ = 121340422429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6152696 + ... + 6172385.

It is an arithmetic number, because the mean of its divisors is an integer number (9983316420).

Almost surely, 2^121340422445 is an apocalyptic number.

It is an amenable number.

121340422445 is a deficient number, since it is larger than the sum of its proper divisors (38392640275).

121340422445 is a wasteful number, since it uses less digits than its factorization.

121340422445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12325276.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 121340422445 its reverse (544224043121), we get a palindrome (665564465566).

The spelling of 121340422445 in words is "one hundred twenty-one billion, three hundred forty million, four hundred twenty-two thousand, four hundred forty-five".