10422012421 has 2 divisors, whose sum is σ = 10422012422. Its totient is φ = 10422012420.

The previous prime is 10422012347. The next prime is 10422012463. The reversal of 10422012421 is 12421022401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9795060900 + 626951521 = 98970^2 + 25039^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10422012421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10422012521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5211006210 + 5211006211.

It is an arithmetic number, because the mean of its divisors is an integer number (5211006211).

Almost surely, 2^10422012421 is an apocalyptic number.

It is an amenable number.

10422012421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10422012421 is an equidigital number, since it uses as much as digits as its factorization.

10422012421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 10422012421 its reverse (12421022401), we get a palindrome (22843034822).

The spelling of 10422012421 in words is "ten billion, four hundred twenty-two million, twelve thousand, four hundred twenty-one".