20122401449 has 2 divisors, whose sum is σ = 20122401450. Its totient is φ = 20122401448.

The previous prime is 20122401433. The next prime is 20122401451. The reversal of 20122401449 is 94410422102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16385280025 + 3737121424 = 128005^2 + 61132^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122401449 - 2⁴ = 20122401433 is a prime.

It is a super-2 number, since 2×20122401449² (a number of 21 digits) contains 22 as substring.

Together with 20122401451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20122401149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061200724 + 10061200725.

It is an arithmetic number, because the mean of its divisors is an integer number (10061200725).

Almost surely, 2^20122401449 is an apocalyptic number.

It is an amenable number.

20122401449 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122401449 is an equidigital number, since it uses as much as digits as its factorization.

20122401449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The spelling of 20122401449 in words is "twenty billion, one hundred twenty-two million, four hundred one thousand, four hundred forty-nine".