1120221120121 has 2 divisors, whose sum is σ = 1120221120122. Its totient is φ = 1120221120120.

The previous prime is 1120221120113. The next prime is 1120221120127. The reversal of 1120221120121 is 1210211220211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 861332486400 + 258888633721 = 928080^2 + 508811^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120221120121 - 2³ = 1120221120113 is a prime.

It is a super-2 number, since 2×1120221120121² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1120221120095 and 1120221120104.

It is not a weakly prime, because it can be changed into another prime (1120221120127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560110560060 + 560110560061.

It is an arithmetic number, because the mean of its divisors is an integer number (560110560061).

Almost surely, 2^{1120221120121} is an apocalyptic number.

It is an amenable number.

1120221120121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120221120121 is an equidigital number, since it uses as much as digits as its factorization.

1120221120121 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 16.

Adding to 1120221120121 its reverse (1210211220211), we get a palindrome (2330432340332).

The spelling of 1120221120121 in words is "one trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twenty-one".