43222140281 has 2 divisors, whose sum is σ = 43222140282. Its totient is φ = 43222140280.

The previous prime is 43222140223. The next prime is 43222140317. The reversal of 43222140281 is 18204122234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38586709225 + 4635431056 = 196435^2 + 68084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43222140281 is a prime.

It is a super-2 number, since 2×43222140281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43222140781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21611070140 + 21611070141.

It is an arithmetic number, because the mean of its divisors is an integer number (21611070141).

Almost surely, 2^43222140281 is an apocalyptic number.

It is an amenable number.

43222140281 is a deficient number, since it is larger than the sum of its proper divisors (1).

43222140281 is an equidigital number, since it uses as much as digits as its factorization.

43222140281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 29.

The spelling of 43222140281 in words is "forty-three billion, two hundred twenty-two million, one hundred forty thousand, two hundred eighty-one".