10223022121 has 4 divisors (see below), whose sum is σ = 11009408452. Its totient is φ = 9436635792.

The previous prime is 10223022119. The next prime is 10223022149. The reversal of 10223022121 is 12122032201.

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 2869102096 + 7353920025 = 53564^2 + 85755^2 .

It is a cyclic number.

It is not a de Polignac number, because 10223022121 - 2¹ = 10223022119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10223022095 and 10223022104.

It is not an unprimeable number, because it can be changed into a prime (10223022151) 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, 393193146 + ... + 393193171.

It is an arithmetic number, because the mean of its divisors is an integer number (2752352113).

Almost surely, 2^10223022121 is an apocalyptic number.

It is an amenable number.

10223022121 is a deficient number, since it is larger than the sum of its proper divisors (786386331).

10223022121 is an equidigital number, since it uses as much as digits as its factorization.

10223022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786386330.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 10223022121 its reverse (12122032201), we get a palindrome (22345054322).

The spelling of 10223022121 in words is "ten billion, two hundred twenty-three million, twenty-two thousand, one hundred twenty-one".