20211452297 has 2 divisors, whose sum is σ = 20211452298. Its totient is φ = 20211452296.

The previous prime is 20211452281. The next prime is 20211452311. The reversal of 20211452297 is 79225411202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18879859216 + 1331593081 = 137404^2 + 36491^2 .

It is a cyclic number.

It is not a de Polignac number, because 20211452297 - 2⁴ = 20211452281 is a prime.

It is not a weakly prime, because it can be changed into another prime (20211452237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105726148 + 10105726149.

It is an arithmetic number, because the mean of its divisors is an integer number (10105726149).

Almost surely, 2^20211452297 is an apocalyptic number.

It is an amenable number.

20211452297 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211452297 is an equidigital number, since it uses as much as digits as its factorization.

20211452297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

Adding to 20211452297 its reverse (79225411202), we get a palindrome (99436863499).

The spelling of 20211452297 in words is "twenty billion, two hundred eleven million, four hundred fifty-two thousand, two hundred ninety-seven".