121052225325155 has 4 divisors (see below), whose sum is σ = 145262670390192. Its totient is φ = 96841780260120.

The previous prime is 121052225325089. The next prime is 121052225325169. The reversal of 121052225325155 is 551523522250121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121052225325155 - 2²⁴ = 121052208547939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12105222532511 + ... + 12105222532520.

It is an arithmetic number, because the mean of its divisors is an integer number (36315667597548).

Almost surely, 2^{121052225325155} is an apocalyptic number.

121052225325155 is a deficient number, since it is larger than the sum of its proper divisors (24210445065037).

121052225325155 is an equidigital number, since it uses as much as digits as its factorization.

121052225325155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24210445065036.

The product of its (nonzero) digits is 300000, while the sum is 41.

Adding to 121052225325155 its reverse (551523522250121), we get a palindrome (672575747575276).

The spelling of 121052225325155 in words is "one hundred twenty-one trillion, fifty-two billion, two hundred twenty-five million, three hundred twenty-five thousand, one hundred fifty-five".