122011202120231 has 2 divisors, whose sum is σ = 122011202120232. Its totient is φ = 122011202120230.

The previous prime is 122011202120191. The next prime is 122011202120243. The reversal of 122011202120231 is 132021202110221.

It is a strong prime.

It is an emirp because it is prime and its reverse (132021202110221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122011202120231 is a prime.

It is a super-2 number, since 2×122011202120231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122011202120281) 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 as a sum of consecutive naturals, namely, 61005601060115 + 61005601060116.

It is an arithmetic number, because the mean of its divisors is an integer number (61005601060116).

Almost surely, 2^{122011202120231} is an apocalyptic number.

122011202120231 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011202120231 is an equidigital number, since it uses as much as digits as its factorization.

122011202120231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 122011202120231 its reverse (132021202110221), we get a palindrome (254032404230452).

The spelling of 122011202120231 in words is "one hundred twenty-two trillion, eleven billion, two hundred two million, one hundred twenty thousand, two hundred thirty-one".