1122020000221 has 2 divisors, whose sum is σ = 1122020000222. Its totient is φ = 1122020000220.

The previous prime is 1122020000219. The next prime is 1122020000251. The reversal of 1122020000221 is 1220000202211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1121586902500 + 433097721 = 1059050^2 + 20811^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122020000221 - 2¹ = 1122020000219 is a prime.

Together with 1122020000219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122020000251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561010000110 + 561010000111.

It is an arithmetic number, because the mean of its divisors is an integer number (561010000111).

Almost surely, 2^{1122020000221} is an apocalyptic number.

It is an amenable number.

1122020000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122020000221 is an equidigital number, since it uses as much as digits as its factorization.

1122020000221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1122020000221 its reverse (1220000202211), we get a palindrome (2342020202432).

The spelling of 1122020000221 in words is "one trillion, one hundred twenty-two billion, twenty million, two hundred twenty-one", and thus it is an aban number.