2211222121099 has 8 divisors (see below), whose sum is σ = 2232974345472. Its totient is φ = 2189475359400.

The previous prime is 2211222121081. The next prime is 2211222121117. The reversal of 2211222121099 is 9901212221122.

It is a happy number.

2211222121099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2211222121081) and next prime (2211222121117).

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 2211222121099 - 2⁹ = 2211222120587 is a prime.

It is a super-3 number, since 3×2211222121099³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211222121499) 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, 549727 + ... + 2173624.

It is an arithmetic number, because the mean of its divisors is an integer number (279121793184).

Almost surely, 2^{2211222121099} is an apocalyptic number.

2211222121099 is a deficient number, since it is larger than the sum of its proper divisors (21752224373).

2211222121099 is a wasteful number, since it uses less digits than its factorization.

2211222121099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731337.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 2211222121099 in words is "two trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, ninety-nine".