122113301213221 has 4 divisors (see below), whose sum is σ = 122152427554444. Its totient is φ = 122074174872000.

The previous prime is 122113301213207. The next prime is 122113301213227. The reversal of 122113301213221 is 122312103311221.

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 61954057788100 + 60159243425121 = 7871090^2 + 7756239^2 .

It is a cyclic number.

It is not a de Polignac number, because 122113301213221 - 2²⁷ = 122113166995493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122113301213227) 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, 19563165930 + ... + 19563172171.

It is an arithmetic number, because the mean of its divisors is an integer number (30538106888611).

Almost surely, 2^{122113301213221} is an apocalyptic number.

It is an amenable number.

122113301213221 is a deficient number, since it is larger than the sum of its proper divisors (39126341223).

122113301213221 is an equidigital number, since it uses as much as digits as its factorization.

122113301213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39126341222.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 122113301213221 its reverse (122312103311221), we get a palindrome (244425404524442).

The spelling of 122113301213221 in words is "one hundred twenty-two trillion, one hundred thirteen billion, three hundred one million, two hundred thirteen thousand, two hundred twenty-one".