121422322545 has 64 divisors (see below), whose sum is σ = 213672314880. Its totient is φ = 58605769728.

The previous prime is 121422322487. The next prime is 121422322561. The reversal of 121422322545 is 545223224121.

It is not a de Polignac number, because 121422322545 - 2⁶ = 121422322481 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5147017 + ... + 5170553.

It is an arithmetic number, because the mean of its divisors is an integer number (3338629920).

Almost surely, 2^121422322545 is an apocalyptic number.

121422322545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121422322545 is a deficient number, since it is larger than the sum of its proper divisors (92249992335).

121422322545 is a wasteful number, since it uses less digits than its factorization.

121422322545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24374.

The product of its digits is 38400, while the sum is 33.

Adding to 121422322545 its reverse (545223224121), we get a palindrome (666645546666).

The spelling of 121422322545 in words is "one hundred twenty-one billion, four hundred twenty-two million, three hundred twenty-two thousand, five hundred forty-five".