11111221012199 has 8 divisors (see below), whose sum is σ = 13852950872448. Its totient is φ = 8658094295160.

The previous prime is 11111221012141. The next prime is 11111221012201. The reversal of 11111221012199 is 99121012211111.

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 11111221012199 - 2²⁴ = 11111204234983 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 (11111221012109) 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, 72150785717 + ... + 72150785870.

It is an arithmetic number, because the mean of its divisors is an integer number (1731618859056).

Almost surely, 2^{11111221012199} is an apocalyptic number.

11111221012199 is a deficient number, since it is larger than the sum of its proper divisors (2741729860249).

11111221012199 is a wasteful number, since it uses less digits than its factorization.

11111221012199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144301571605.

The product of its (nonzero) digits is 648, while the sum is 32.

The spelling of 11111221012199 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-one million, twelve thousand, one hundred ninety-nine".