1122212011021 has 2 divisors, whose sum is σ = 1122212011022. Its totient is φ = 1122212011020.

The previous prime is 1122212011009. The next prime is 1122212011051. The reversal of 1122212011021 is 1201102122211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 967852602025 + 154359408996 = 983795^2 + 392886^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122212011021 - 2²⁷ = 1122077793293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122212010986 and 1122212011004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122212011051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561106005510 + 561106005511.

It is an arithmetic number, because the mean of its divisors is an integer number (561106005511).

Almost surely, 2^{1122212011021} is an apocalyptic number.

It is an amenable number.

1122212011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122212011021 is an equidigital number, since it uses as much as digits as its factorization.

1122212011021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1122212011021 its reverse (1201102122211), we get a palindrome (2323314133232).

The spelling of 1122212011021 in words is "one trillion, one hundred twenty-two billion, two hundred twelve million, eleven thousand, twenty-one".