1122221021211 has 12 divisors (see below), whose sum is σ = 1633359859560. Its totient is φ = 742436298240.

The previous prime is 1122221021171. The next prime is 1122221021281. The reversal of 1122221021211 is 1121201222211.

1122221021211 is a `hidden beast` number, since 1 + 1 + 222 + 210 + 21 + 211 = 666.

It is not a de Polignac number, because 1122221021211 - 2¹⁷ = 1122220890139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122221021281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 475919526 + ... + 475921883.

It is an arithmetic number, because the mean of its divisors is an integer number (136113321630).

Almost surely, 2^{1122221021211} is an apocalyptic number.

1122221021211 is a deficient number, since it is larger than the sum of its proper divisors (511138838349).

1122221021211 is a wasteful number, since it uses less digits than its factorization.

1122221021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951841546 (or 951841543 counting only the distinct ones).

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

Adding to 1122221021211 its reverse (1121201222211), we get a palindrome (2243422243422).

The spelling of 1122221021211 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, twenty-one thousand, two hundred eleven".