1122210221021 has 2 divisors, whose sum is σ = 1122210221022. Its totient is φ = 1122210221020.

The previous prime is 1122210220973. The next prime is 1122210221101. The reversal of 1122210221021 is 1201220122211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 733506602500 + 388703618521 = 856450^2 + 623461^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122210221021 - 2²⁶ = 1122143112157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122210221521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561105110510 + 561105110511.

It is an arithmetic number, because the mean of its divisors is an integer number (561105110511).

Almost surely, 2^{1122210221021} is an apocalyptic number.

It is an amenable number.

1122210221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122210221021 is an equidigital number, since it uses as much as digits as its factorization.

1122210221021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1122210221021 its reverse (1201220122211), we get a palindrome (2323430343232).

The spelling of 1122210221021 in words is "one trillion, one hundred twenty-two billion, two hundred ten million, two hundred twenty-one thousand, twenty-one".