1022211121211 has 16 divisors (see below), whose sum is σ = 1192225569984. Its totient is φ = 858246689664.

The previous prime is 1022211121187. The next prime is 1022211121241. The reversal of 1022211121211 is 1121211122201.

It is not a de Polignac number, because 1022211121211 - 2²⁶ = 1022144012347 is a prime.

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 1022211121211.

It is not an unprimeable number, because it can be changed into a prime (1022211121241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2019956 + ... + 2474801.

It is an arithmetic number, because the mean of its divisors is an integer number (74514098124).

Almost surely, 2^{1022211121211} is an apocalyptic number.

1022211121211 is a deficient number, since it is larger than the sum of its proper divisors (170014448773).

1022211121211 is an equidigital number, since it uses as much as digits as its factorization.

1022211121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4495430.

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

Adding to 1022211121211 its reverse (1121211122201), we get a palindrome (2143422243412).

The spelling of 1022211121211 in words is "one trillion, twenty-two billion, two hundred eleven million, one hundred twenty-one thousand, two hundred eleven".