1120022521 has 2 divisors, whose sum is σ = 1120022522. Its totient is φ = 1120022520.

The previous prime is 1120022503. The next prime is 1120022531. The reversal of 1120022521 is 1252200211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1009015225 + 111007296 = 31765^2 + 10536^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120022521 - 2⁵ = 1120022489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1120022495 and 1120022504.

It is not a weakly prime, because it can be changed into another prime (1120022531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560011260 + 560011261.

It is an arithmetic number, because the mean of its divisors is an integer number (560011261).

Almost surely, 2^1120022521 is an apocalyptic number.

It is an amenable number.

1120022521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120022521 is an equidigital number, since it uses as much as digits as its factorization.

1120022521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1120022521 is about 33466.7375314655. The cubic root of 1120022521 is about 1038.5057810474.

Adding to 1120022521 its reverse (1252200211), we get a palindrome (2372222732).

The spelling of 1120022521 in words is "one billion, one hundred twenty million, twenty-two thousand, five hundred twenty-one".