2122019999 has 8 divisors (see below), whose sum is σ = 2337852240. Its totient is φ = 1910008000.

The previous prime is 2122019981. The next prime is 2122020001. The reversal of 2122019999 is 9999102212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2122019999 - 2⁸ = 2122019743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122019299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953894 + ... + 956115.

It is an arithmetic number, because the mean of its divisors is an integer number (292231530).

Almost surely, 2^2122019999 is an apocalyptic number.

2122019999 is a deficient number, since it is larger than the sum of its proper divisors (215832241).

2122019999 is a wasteful number, since it uses less digits than its factorization.

2122019999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910121.

The product of its (nonzero) digits is 52488, while the sum is 44.

The square root of 2122019999 is about 46065.3882975060. The cubic root of 2122019999 is about 1285.0395399321.

The spelling of 2122019999 in words is "two billion, one hundred twenty-two million, nineteen thousand, nine hundred ninety-nine".