122011231255153 has 4 divisors (see below), whose sum is σ = 122630577606900. Its totient is φ = 121391884903408.

The previous prime is 122011231255091. The next prime is 122011231255159. The reversal of 122011231255153 is 351552132110221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 100002260012769 + 22008971242384 = 10000113^2 + 4691372^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122011231255153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122011231255159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309673175578 + ... + 309673175971.

It is an arithmetic number, because the mean of its divisors is an integer number (30657644401725).

Almost surely, 2^{122011231255153} is an apocalyptic number.

It is an amenable number.

122011231255153 is a deficient number, since it is larger than the sum of its proper divisors (619346351747).

122011231255153 is an equidigital number, since it uses as much as digits as its factorization.

122011231255153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619346351746.

The product of its (nonzero) digits is 18000, while the sum is 34.

Adding to 122011231255153 its reverse (351552132110221), we get a palindrome (473563363365374).

The spelling of 122011231255153 in words is "one hundred twenty-two trillion, eleven billion, two hundred thirty-one million, two hundred fifty-five thousand, one hundred fifty-three".