1022011112221 has 16 divisors (see below), whose sum is σ = 1115671265280. Its totient is φ = 928476244080.

The previous prime is 1022011112179. The next prime is 1022011112237. The reversal of 1022011112221 is 1222111102201.

It is not a de Polignac number, because 1022011112221 - 2⁷ = 1022011112093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022011112195 and 1022011112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022011112251) 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, 175993500 + ... + 175999306.

It is an arithmetic number, because the mean of its divisors is an integer number (69729454080).

Almost surely, 2^{1022011112221} is an apocalyptic number.

1022011112221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1022011112221 is a deficient number, since it is larger than the sum of its proper divisors (93660153059).

1022011112221 is a wasteful number, since it uses less digits than its factorization.

1022011112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13824.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1022011112221 its reverse (1222111102201), we get a palindrome (2244122214422).

The spelling of 1022011112221 in words is "one trillion, twenty-two billion, eleven million, one hundred twelve thousand, two hundred twenty-one".