8901821222443 has 2 divisors, whose sum is σ = 8901821222444. Its totient is φ = 8901821222442.

The previous prime is 8901821222407. The next prime is 8901821222491. The reversal of 8901821222443 is 3442221281098.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8901821222443 - 2²¹ = 8901819125291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8901821222393 and 8901821222402.

It is not a weakly prime, because it can be changed into another prime (8901821222743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4450910611221 + 4450910611222.

It is an arithmetic number, because the mean of its divisors is an integer number (4450910611222).

Almost surely, 2^{8901821222443} is an apocalyptic number.

8901821222443 is a deficient number, since it is larger than the sum of its proper divisors (1).

8901821222443 is an equidigital number, since it uses as much as digits as its factorization.

8901821222443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 8901821222443 in words is "eight trillion, nine hundred one billion, eight hundred twenty-one million, two hundred twenty-two thousand, four hundred forty-three".