1120211112221 has 2 divisors, whose sum is σ = 1120211112222. Its totient is φ = 1120211112220.

The previous prime is 1120211112179. The next prime is 1120211112227. The reversal of 1120211112221 is 1222111120211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 626177846596 + 494033265625 = 791314^2 + 702875^2 .

It is an emirp because it is prime and its reverse (1222111120211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120211112221 - 2²⁶ = 1120144003357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1120211112221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120211112227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560105556110 + 560105556111.

It is an arithmetic number, because the mean of its divisors is an integer number (560105556111).

Almost surely, 2^{1120211112221} is an apocalyptic number.

It is an amenable number.

1120211112221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120211112221 is an equidigital number, since it uses as much as digits as its factorization.

1120211112221 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 17.

Adding to 1120211112221 its reverse (1222111120211), we get a palindrome (2342322232432).

The spelling of 1120211112221 in words is "one trillion, one hundred twenty billion, two hundred eleven million, one hundred twelve thousand, two hundred twenty-one".