1322020229 has 2 divisors, whose sum is σ = 1322020230. Its totient is φ = 1322020228.

The previous prime is 1322020211. The next prime is 1322020261. The reversal of 1322020229 is 9220202231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 918211204 + 403809025 = 30302^2 + 20095^2 .

It is a cyclic number.

It is not a de Polignac number, because 1322020229 - 2¹² = 1322016133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1322010229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661010114 + 661010115.

It is an arithmetic number, because the mean of its divisors is an integer number (661010115).

Almost surely, 2^1322020229 is an apocalyptic number.

It is an amenable number.

1322020229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1322020229 is an equidigital number, since it uses as much as digits as its factorization.

1322020229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1322020229 is about 36359.5961061176. The cubic root of 1322020229 is about 1097.5206497395.

The spelling of 1322020229 in words is "one billion, three hundred twenty-two million, twenty thousand, two hundred twenty-nine".