2199185881427 has 4 divisors (see below), whose sum is σ = 2199202661040. Its totient is φ = 2199169101816.

The previous prime is 2199185881421. The next prime is 2199185881429. The reversal of 2199185881427 is 7241885819912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2199185881427 - 2²² = 2199181687123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2199185881421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8191652 + ... + 8455857.

It is an arithmetic number, because the mean of its divisors is an integer number (549800665260).

Almost surely, 2^{2199185881427} is an apocalyptic number.

2199185881427 is a deficient number, since it is larger than the sum of its proper divisors (16779613).

2199185881427 is a wasteful number, since it uses less digits than its factorization.

2199185881427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16779612.

The product of its digits is 23224320, while the sum is 65.

The spelling of 2199185881427 in words is "two trillion, one hundred ninety-nine billion, one hundred eighty-five million, eight hundred eighty-one thousand, four hundred twenty-seven".