42200010421 has 2 divisors, whose sum is σ = 42200010422. Its totient is φ = 42200010420.

The previous prime is 42200010371. The next prime is 42200010443. The reversal of 42200010421 is 12401000224.

42200010421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38814516196 + 3385494225 = 197014^2 + 58185^2 .

It is a cyclic number.

It is not a de Polignac number, because 42200010421 - 2¹⁵ = 42199977653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42200010395 and 42200010404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42200010521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21100005210 + 21100005211.

It is an arithmetic number, because the mean of its divisors is an integer number (21100005211).

Almost surely, 2^42200010421 is an apocalyptic number.

It is an amenable number.

42200010421 is a deficient number, since it is larger than the sum of its proper divisors (1).

42200010421 is an equidigital number, since it uses as much as digits as its factorization.

42200010421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 42200010421 its reverse (12401000224), we get a palindrome (54601010645).

The spelling of 42200010421 in words is "forty-two billion, two hundred million, ten thousand, four hundred twenty-one".