121322252555 has 8 divisors (see below), whose sum is σ = 166384803552. Its totient is φ = 83192401728.

The previous prime is 121322252531. The next prime is 121322252593. The reversal of 121322252555 is 555252223121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121322252555 - 2³⁰ = 120248510731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 3466350073 = 121322252555 / (1 + 2 + 1 + 3 + 2 + 2 + 2 + 5 + 2 + 5 + 5 + 5).

It is a Duffinian number.

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, 1733175002 + ... + 1733175071.

It is an arithmetic number, because the mean of its divisors is an integer number (20798100444).

Almost surely, 2^121322252555 is an apocalyptic number.

121322252555 is a deficient number, since it is larger than the sum of its proper divisors (45062550997).

121322252555 is an equidigital number, since it uses as much as digits as its factorization.

121322252555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3466350085.

The product of its digits is 60000, while the sum is 35.

Adding to 121322252555 its reverse (555252223121), we get a palindrome (676574475676).

The spelling of 121322252555 in words is "one hundred twenty-one billion, three hundred twenty-two million, two hundred fifty-two thousand, five hundred fifty-five".