122103132123221 has 8 divisors (see below), whose sum is σ = 122229090527544. Its totient is φ = 121977184415680.

The previous prime is 122103132123199. The next prime is 122103132123227. The reversal of 122103132123221 is 122321231301221.

It can be written as a sum of positive squares in 4 ways, for example, as 1279375899025 + 120823756224196 = 1131095^2 + 10991986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122103132123221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122103132123227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20268911 + ... + 25593651.

It is an arithmetic number, because the mean of its divisors is an integer number (15278636315943).

Almost surely, 2^{122103132123221} is an apocalyptic number.

It is an amenable number.

122103132123221 is a deficient number, since it is larger than the sum of its proper divisors (125958404323).

122103132123221 is a wasteful number, since it uses less digits than its factorization.

122103132123221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5348391.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 122103132123221 its reverse (122321231301221), we get a palindrome (244424363424442).

The spelling of 122103132123221 in words is "one hundred twenty-two trillion, one hundred three billion, one hundred thirty-two million, one hundred twenty-three thousand, two hundred twenty-one".