10121221233 has 6 divisors (see below), whose sum is σ = 14619541794. Its totient is φ = 6747480816.

The previous prime is 10121221223. The next prime is 10121221289. The reversal of 10121221233 is 33212212101.

It can be written as a sum of positive squares in only one way, i.e., 7101938529 + 3019282704 = 84273^2 + 54948^2 .

It is not a de Polignac number, because 10121221233 - 2²⁵ = 10087666801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10121221223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 562290060 + ... + 562290077.

It is an arithmetic number, because the mean of its divisors is an integer number (2436590299).

Almost surely, 2^10121221233 is an apocalyptic number.

It is an amenable number.

10121221233 is a deficient number, since it is larger than the sum of its proper divisors (4498320561).

10121221233 is a wasteful number, since it uses less digits than its factorization.

10121221233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124580143 (or 1124580140 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10121221233 its reverse (33212212101), we get a palindrome (43333433334).

The spelling of 10121221233 in words is "ten billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred thirty-three".