2121112201199 has 4 divisors (see below), whose sum is σ = 2121130024536. Its totient is φ = 2121094377864.

The previous prime is 2121112201183. The next prime is 2121112201211. The reversal of 2121112201199 is 9911022111212.

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 2121112201199 - 2⁴ = 2121112201183 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 (2121112201799) 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, 8731949 + ... + 8971574.

It is an arithmetic number, because the mean of its divisors is an integer number (530282506134).

Almost surely, 2^{2121112201199} is an apocalyptic number.

2121112201199 is a deficient number, since it is larger than the sum of its proper divisors (17823337).

2121112201199 is a wasteful number, since it uses less digits than its factorization.

2121112201199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17823336.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 2121112201199 in words is "two trillion, one hundred twenty-one billion, one hundred twelve million, two hundred one thousand, one hundred ninety-nine".