22011221143 has 2 divisors, whose sum is σ = 22011221144. Its totient is φ = 22011221142.

The previous prime is 22011221101. The next prime is 22011221147. The reversal of 22011221143 is 34112211022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22011221143 - 2²¹ = 22009123991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22011221143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22011221147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005610571 + 11005610572.

It is an arithmetic number, because the mean of its divisors is an integer number (11005610572).

Almost surely, 2^22011221143 is an apocalyptic number.

22011221143 is a deficient number, since it is larger than the sum of its proper divisors (1).

22011221143 is an equidigital number, since it uses as much as digits as its factorization.

22011221143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 22011221143 its reverse (34112211022), we get a palindrome (56123432165).

The spelling of 22011221143 in words is "twenty-two billion, eleven million, two hundred twenty-one thousand, one hundred forty-three".