21622207260443 has 2 divisors, whose sum is σ = 21622207260444. Its totient is φ = 21622207260442.

The previous prime is 21622207260439. The next prime is 21622207260449. The reversal of 21622207260443 is 34406270222612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21622207260443 - 2² = 21622207260439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21622207260443.

It is not a weakly prime, because it can be changed into another prime (21622207260449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10811103630221 + 10811103630222.

It is an arithmetic number, because the mean of its divisors is an integer number (10811103630222).

Almost surely, 2^{21622207260443} is an apocalyptic number.

21622207260443 is a deficient number, since it is larger than the sum of its proper divisors (1).

21622207260443 is an equidigital number, since it uses as much as digits as its factorization.

21622207260443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 41.

The spelling of 21622207260443 in words is "twenty-one trillion, six hundred twenty-two billion, two hundred seven million, two hundred sixty thousand, four hundred forty-three".