2196999971 has 2 divisors, whose sum is σ = 2196999972. Its totient is φ = 2196999970.

The previous prime is 2196999941. The next prime is 2197000031. The reversal of 2196999971 is 1799996912.

It is a happy number.

2196999971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2196999971 - 2⁶ = 2196999907 is a prime.

It is not a weakly prime, because it can be changed into another prime (2196999911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098499985 + 1098499986.

It is an arithmetic number, because the mean of its divisors is an integer number (1098499986).

Almost surely, 2^2196999971 is an apocalyptic number.

2196999971 is a deficient number, since it is larger than the sum of its proper divisors (1).

2196999971 is an equidigital number, since it uses as much as digits as its factorization.

2196999971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4960116, while the sum is 62.

The square root of 2196999971 is about 46872.1662716798. The cubic root of 2196999971 is about 1299.9999942801. Note that the first 5 decimals are identical.

The spelling of 2196999971 in words is "two billion, one hundred ninety-six million, nine hundred ninety-nine thousand, nine hundred seventy-one".