2212209999 has 6 divisors (see below), whose sum is σ = 3195414456. Its totient is φ = 1474806660.

The previous prime is 2212209991. The next prime is 2212210027. The reversal of 2212209999 is 9999022122.

It is not a de Polignac number, because 2212209999 - 2³ = 2212209991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212209991) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122900547 + ... + 122900564.

It is an arithmetic number, because the mean of its divisors is an integer number (532569076).

Almost surely, 2^2212209999 is an apocalyptic number.

2212209999 is a deficient number, since it is larger than the sum of its proper divisors (983204457).

2212209999 is a wasteful number, since it uses less digits than its factorization.

2212209999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245801117 (or 245801114 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 2212209999 is about 47034.1365286958. The cubic root of 2212209999 is about 1302.9931032317.

The spelling of 2212209999 in words is "two billion, two hundred twelve million, two hundred nine thousand, nine hundred ninety-nine".