1121222202211 has 4 divisors (see below), whose sum is σ = 1159885036800. Its totient is φ = 1082559367624.

The previous prime is 1121222202209. The next prime is 1121222202229. The reversal of 1121222202211 is 1122022221211.

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 1121222202211 - 2¹ = 1121222202209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121222202251) 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, 19331417251 + ... + 19331417308.

It is an arithmetic number, because the mean of its divisors is an integer number (289971259200).

Almost surely, 2^{1121222202211} is an apocalyptic number.

1121222202211 is a deficient number, since it is larger than the sum of its proper divisors (38662834589).

1121222202211 is an equidigital number, since it uses as much as digits as its factorization.

1121222202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38662834588.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1121222202211 its reverse (1122022221211), we get a palindrome (2243244423422).

The spelling of 1121222202211 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred two thousand, two hundred eleven".