122331042420205 has 4 divisors (see below), whose sum is σ = 146797250904252. Its totient is φ = 97864833936160.

The previous prime is 122331042420203. The next prime is 122331042420241. The reversal of 122331042420205 is 502024240133221.

It is a happy number.

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 40542496555401 + 81788545864804 = 6367299^2 + 9043702^2 .

It is not a de Polignac number, because 122331042420205 - 2¹ = 122331042420203 is a prime.

It is a super-2 number, since 2×122331042420205² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122331042420203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12233104242016 + ... + 12233104242025.

It is an arithmetic number, because the mean of its divisors is an integer number (36699312726063).

Almost surely, 2^{122331042420205} is an apocalyptic number.

It is an amenable number.

122331042420205 is a deficient number, since it is larger than the sum of its proper divisors (24466208484047).

122331042420205 is an equidigital number, since it uses as much as digits as its factorization.

122331042420205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24466208484046.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 122331042420205 its reverse (502024240133221), we get a palindrome (624355282553426).

The spelling of 122331042420205 in words is "one hundred twenty-two trillion, three hundred thirty-one billion, forty-two million, four hundred twenty thousand, two hundred five".