1122221000091 has 8 divisors (see below), whose sum is σ = 1496339805184. Its totient is φ = 748124764200.

The previous prime is 1122220999997. The next prime is 1122221000093. The reversal of 1122221000091 is 1900001222211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1122221000091 - 2¹¹ = 1122220998043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122221000093) 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, 5525935 + ... + 5725416.

It is an arithmetic number, because the mean of its divisors is an integer number (187042475648).

Almost surely, 2^{1122221000091} is an apocalyptic number.

1122221000091 is a deficient number, since it is larger than the sum of its proper divisors (374118805093).

1122221000091 is a wasteful number, since it uses less digits than its factorization.

1122221000091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11284601.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 1122221000091 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, ninety-one", and thus it is an aban number.