2211998143 has 2 divisors, whose sum is σ = 2211998144. Its totient is φ = 2211998142.

The previous prime is 2211998141. The next prime is 2211998147. The reversal of 2211998143 is 3418991122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2211998143 - 2¹ = 2211998141 is a prime.

Together with 2211998141, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2211998096 and 2211998105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211998141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105999071 + 1105999072.

It is an arithmetic number, because the mean of its divisors is an integer number (1105999072).

Almost surely, 2^2211998143 is an apocalyptic number.

2211998143 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211998143 is an equidigital number, since it uses as much as digits as its factorization.

2211998143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 2211998143 is about 47031.8843232971. The cubic root of 2211998143 is about 1302.9515074640.

The spelling of 2211998143 in words is "two billion, two hundred eleven million, nine hundred ninety-eight thousand, one hundred forty-three".