122404045532261 has 2 divisors, whose sum is σ = 122404045532262. Its totient is φ = 122404045532260.

The previous prime is 122404045532221. The next prime is 122404045532267. The reversal of 122404045532261 is 162235540404221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105734022117025 + 16670023415236 = 10282705^2 + 4082894^2 .

It is an emirp because it is prime and its reverse (162235540404221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122404045532261 - 2¹⁰ = 122404045531237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122404045532267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61202022766130 + 61202022766131.

It is an arithmetic number, because the mean of its divisors is an integer number (61202022766131).

Almost surely, 2^{122404045532261} is an apocalyptic number.

It is an amenable number.

122404045532261 is a deficient number, since it is larger than the sum of its proper divisors (1).

122404045532261 is an equidigital number, since it uses as much as digits as its factorization.

122404045532261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 122404045532261 its reverse (162235540404221), we get a palindrome (284639585936482).

The spelling of 122404045532261 in words is "one hundred twenty-two trillion, four hundred four billion, forty-five million, five hundred thirty-two thousand, two hundred sixty-one".