20122401451 has 2 divisors, whose sum is σ = 20122401452. Its totient is φ = 20122401450.

The previous prime is 20122401449. The next prime is 20122401457. The reversal of 20122401451 is 15410422102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20122401451 - 2¹ = 20122401449 is a prime.

It is a super-2 number, since 2×20122401451² (a number of 21 digits) contains 22 as substring.

Together with 20122401449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20122401457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061200725 + 10061200726.

It is an arithmetic number, because the mean of its divisors is an integer number (10061200726).

Almost surely, 2^20122401451 is an apocalyptic number.

20122401451 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122401451 is an equidigital number, since it uses as much as digits as its factorization.

20122401451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 640, while the sum is 22.

Adding to 20122401451 its reverse (15410422102), we get a palindrome (35532823553).

The spelling of 20122401451 in words is "twenty billion, one hundred twenty-two million, four hundred one thousand, four hundred fifty-one".