2220010421 has 2 divisors, whose sum is σ = 2220010422. Its totient is φ = 2220010420.

The previous prime is 2220010327. The next prime is 2220010453. The reversal of 2220010421 is 1240100222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2188929796 + 31080625 = 46786^2 + 5575^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220010421 - 2¹⁰ = 2220009397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220010396 and 2220010405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2220010621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110005210 + 1110005211.

It is an arithmetic number, because the mean of its divisors is an integer number (1110005211).

Almost surely, 2^2220010421 is an apocalyptic number.

It is an amenable number.

2220010421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220010421 is an equidigital number, since it uses as much as digits as its factorization.

2220010421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2220010421 is about 47116.9865441329. The cubic root of 2220010421 is about 1304.5227912201.

Adding to 2220010421 its reverse (1240100222), we get a palindrome (3460110643).

The spelling of 2220010421 in words is "two billion, two hundred twenty million, ten thousand, four hundred twenty-one".