2021422432243 has 2 divisors, whose sum is σ = 2021422432244. Its totient is φ = 2021422432242.

The previous prime is 2021422432201. The next prime is 2021422432277. The reversal of 2021422432243 is 3422342241202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021422432243 - 2²¹ = 2021420335091 is a prime.

It is a super-2 number, since 2×2021422432243² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2021422432643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010711216121 + 1010711216122.

It is an arithmetic number, because the mean of its divisors is an integer number (1010711216122).

Almost surely, 2^{2021422432243} is an apocalyptic number.

2021422432243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021422432243 is an equidigital number, since it uses as much as digits as its factorization.

2021422432243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 2021422432243 its reverse (3422342241202), we get a palindrome (5443764673445).

The spelling of 2021422432243 in words is "two trillion, twenty-one billion, four hundred twenty-two million, four hundred thirty-two thousand, two hundred forty-three".