1111221001099 has 8 divisors (see below), whose sum is σ = 1235113566192. Its totient is φ = 991140515040.

The previous prime is 1111221001061. The next prime is 1111221001243. The reversal of 1111221001099 is 9901001221111.

It is a happy number.

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 1111221001099 - 2¹³ = 1111220992907 is a prime.

It is a super-2 number, since 2×1111221001099² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1111221001799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953019144 + ... + 953020309.

It is an arithmetic number, because the mean of its divisors is an integer number (154389195774).

Almost surely, 2^{1111221001099} is an apocalyptic number.

1111221001099 is a deficient number, since it is larger than the sum of its proper divisors (123892565093).

1111221001099 is a wasteful number, since it uses less digits than its factorization.

1111221001099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906039517.

The product of its (nonzero) digits is 324, while the sum is 28.

The spelling of 1111221001099 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, one thousand, ninety-nine".