1062521221 has 2 divisors, whose sum is σ = 1062521222. Its totient is φ = 1062521220.

The previous prime is 1062521203. The next prime is 1062521231. The reversal of 1062521221 is 1221252601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 636552900 + 425968321 = 25230^2 + 20639^2 .

It is a cyclic number.

It is not a de Polignac number, because 1062521221 - 2⁹ = 1062520709 is a prime.

It is a super-2 number, since 2×1062521221² = 2257902690150661682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1062521192 and 1062521201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1062521231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531260610 + 531260611.

It is an arithmetic number, because the mean of its divisors is an integer number (531260611).

Almost surely, 2^1062521221 is an apocalyptic number.

It is an amenable number.

1062521221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1062521221 is an equidigital number, since it uses as much as digits as its factorization.

1062521221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1062521221 is about 32596.3375396685. The cubic root of 1062521221 is about 1020.4205689088.

Adding to 1062521221 its reverse (1221252601), we get a palindrome (2283773822).

The spelling of 1062521221 in words is "one billion, sixty-two million, five hundred twenty-one thousand, two hundred twenty-one".