20221012451 has 2 divisors, whose sum is σ = 20221012452. Its totient is φ = 20221012450.

The previous prime is 20221012397. The next prime is 20221012463. The reversal of 20221012451 is 15421012202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20221012451 - 2¹⁰ = 20221011427 is a prime.

It is not a weakly prime, because it can be changed into another prime (20221012951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110506225 + 10110506226.

It is an arithmetic number, because the mean of its divisors is an integer number (10110506226).

Almost surely, 2^20221012451 is an apocalyptic number.

20221012451 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221012451 is an equidigital number, since it uses as much as digits as its factorization.

20221012451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 20221012451 its reverse (15421012202), we get a palindrome (35642024653).

The spelling of 20221012451 in words is "twenty billion, two hundred twenty-one million, twelve thousand, four hundred fifty-one".