2199855811 has 8 divisors (see below), whose sum is σ = 2329904304. Its totient is φ = 2069879040.

The previous prime is 2199855797. The next prime is 2199855829. The reversal of 2199855811 is 1185589912.

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 2199855811 - 2⁹ = 2199855299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2199855841) 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, 53356 + ... + 85126.

It is an arithmetic number, because the mean of its divisors is an integer number (291238038).

Almost surely, 2^2199855811 is an apocalyptic number.

2199855811 is a deficient number, since it is larger than the sum of its proper divisors (130048493).

2199855811 is a wasteful number, since it uses less digits than its factorization.

2199855811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35861.

The product of its digits is 259200, while the sum is 49.

The square root of 2199855811 is about 46902.6205131440. The cubic root of 2199855811 is about 1300.5630324457.

The spelling of 2199855811 in words is "two billion, one hundred ninety-nine million, eight hundred fifty-five thousand, eight hundred eleven".