1022211122211 has 16 divisors (see below), whose sum is σ = 1546607846400. Its totient is φ = 666974632104.

The previous prime is 1022211122209. The next prime is 1022211122243. The reversal of 1022211122211 is 1122211122201.

It is not a de Polignac number, because 1022211122211 - 2¹ = 1022211122209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1022211122291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402761191 + ... + 402763728.

It is an arithmetic number, because the mean of its divisors is an integer number (96662990400).

Almost surely, 2^{1022211122211} is an apocalyptic number.

1022211122211 is a deficient number, since it is larger than the sum of its proper divisors (524396724189).

1022211122211 is an equidigital number, since it uses as much as digits as its factorization.

1022211122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805524975 (or 805524969 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1022211122211 its reverse (1122211122201), we get a palindrome (2144422244412).

The spelling of 1022211122211 in words is "one trillion, twenty-two billion, two hundred eleven million, one hundred twenty-two thousand, two hundred eleven".