10030122122221 has 4 divisors (see below), whose sum is σ = 10030348677244. Its totient is φ = 10029895567200.

The previous prime is 10030122122173. The next prime is 10030122122227. The reversal of 10030122122221 is 12222122103001.

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 1864901596996 + 8165220525225 = 1365614^2 + 2857485^2 .

It is a cyclic number.

It is not a de Polignac number, because 10030122122221 - 2²⁵ = 10030088567789 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 (10030122122227) 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, 113211090 + ... + 113299651.

It is an arithmetic number, because the mean of its divisors is an integer number (2507587169311).

Almost surely, 2^{10030122122221} is an apocalyptic number.

It is an amenable number.

10030122122221 is a deficient number, since it is larger than the sum of its proper divisors (226555023).

10030122122221 is an equidigital number, since it uses as much as digits as its factorization.

10030122122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226555022.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 10030122122221 its reverse (12222122103001), we get a palindrome (22252244225222).

The spelling of 10030122122221 in words is "ten trillion, thirty billion, one hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-one".