5122021451 has 2 divisors, whose sum is σ = 5122021452. Its totient is φ = 5122021450.

The previous prime is 5122021447. The next prime is 5122021459. The reversal of 5122021451 is 1541202215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5122021451 - 2² = 5122021447 is a prime.

It is not a weakly prime, because it can be changed into another prime (5122021459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2561010725 + 2561010726.

It is an arithmetic number, because the mean of its divisors is an integer number (2561010726).

Almost surely, 2^5122021451 is an apocalyptic number.

5122021451 is a deficient number, since it is larger than the sum of its proper divisors (1).

5122021451 is an equidigital number, since it uses as much as digits as its factorization.

5122021451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 5122021451 is about 71568.2992043265. The cubic root of 5122021451 is about 1723.7745494804.

Adding to 5122021451 its reverse (1541202215), we get a palindrome (6663223666).

The spelling of 5122021451 in words is "five billion, one hundred twenty-two million, twenty-one thousand, four hundred fifty-one".