121371626416 has 20 divisors (see below), whose sum is σ = 237990751992. Its totient is φ = 59954658176.

The previous prime is 121371626393. The next prime is 121371626419. The reversal of 121371626416 is 614626173121.

It is not an unprimeable number, because it can be changed into a prime (121371626419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45695821 + ... + 45698476.

Almost surely, 2^121371626416 is an apocalyptic number.

121371626416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121371626416 is a deficient number, since it is larger than the sum of its proper divisors (116619125576).

121371626416 is an equidigital number, since it uses as much as digits as its factorization.

121371626416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91394388 (or 91394382 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

Adding to 121371626416 its reverse (614626173121), we get a palindrome (735997799537).

The spelling of 121371626416 in words is "one hundred twenty-one billion, three hundred seventy-one million, six hundred twenty-six thousand, four hundred sixteen".