20212133297 has 2 divisors, whose sum is σ = 20212133298. Its totient is φ = 20212133296.

The previous prime is 20212133257. The next prime is 20212133351. The reversal of 20212133297 is 79233121202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14948485696 + 5263647601 = 122264^2 + 72551^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212133297 - 2⁶ = 20212133233 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212133257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106066648 + 10106066649.

It is an arithmetic number, because the mean of its divisors is an integer number (10106066649).

Almost surely, 2^20212133297 is an apocalyptic number.

It is an amenable number.

20212133297 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212133297 is an equidigital number, since it uses as much as digits as its factorization.

20212133297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 20212133297 its reverse (79233121202), we get a palindrome (99445254499).

The spelling of 20212133297 in words is "twenty billion, two hundred twelve million, one hundred thirty-three thousand, two hundred ninety-seven".