2101999967 has 2 divisors, whose sum is σ = 2101999968. Its totient is φ = 2101999966.

The previous prime is 2101999909. The next prime is 2101999973. The reversal of 2101999967 is 7699991012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101999967 - 2¹² = 2101995871 is a prime.

It is a super-2 number, since 2×2101999967² = 8836807722536002178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101990967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050999983 + 1050999984.

It is an arithmetic number, because the mean of its divisors is an integer number (1050999984).

Almost surely, 2^2101999967 is an apocalyptic number.

2101999967 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101999967 is an equidigital number, since it uses as much as digits as its factorization.

2101999967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 53.

The square root of 2101999967 is about 45847.5731855024. The cubic root of 2101999967 is about 1280.9855623623.

The spelling of 2101999967 in words is "two billion, one hundred one million, nine hundred ninety-nine thousand, nine hundred sixty-seven".