1022111122211 has 4 divisors (see below), whose sum is σ = 1024439394000. Its totient is φ = 1019782850424.

The previous prime is 1022111122183. The next prime is 1022111122243. The reversal of 1022111122211 is 1122211112201.

1022111122211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1022111122211 - 2³⁰ = 1021037380387 is a prime.

It is a super-2 number, since 2×1022111122211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022111122211.

It is not an unprimeable number, because it can be changed into a prime (1022311122211) 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, 1164135236 + ... + 1164136113.

It is an arithmetic number, because the mean of its divisors is an integer number (256109848500).

Almost surely, 2^{1022111122211} is an apocalyptic number.

1022111122211 is a deficient number, since it is larger than the sum of its proper divisors (2328271789).

1022111122211 is an equidigital number, since it uses as much as digits as its factorization.

1022111122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328271788.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1022111122211 its reverse (1122211112201), we get a palindrome (2144322234412).

The spelling of 1022111122211 in words is "one trillion, twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, two hundred eleven".