10223121449 has 2 divisors, whose sum is σ = 10223121450. Its totient is φ = 10223121448.

The previous prime is 10223121439. The next prime is 10223121457. The reversal of 10223121449 is 94412132201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9735374224 + 487747225 = 98668^2 + 22085^2 .

It is a cyclic number.

It is not a de Polignac number, because 10223121449 - 2³² = 5928154153 is a prime.

It is a super-2 number, since 2×10223121449² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10223121439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111560724 + 5111560725.

It is an arithmetic number, because the mean of its divisors is an integer number (5111560725).

Almost surely, 2^10223121449 is an apocalyptic number.

It is an amenable number.

10223121449 is a deficient number, since it is larger than the sum of its proper divisors (1).

10223121449 is an equidigital number, since it uses as much as digits as its factorization.

10223121449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 10223121449 in words is "ten billion, two hundred twenty-three million, one hundred twenty-one thousand, four hundred forty-nine".