21000201122363 has 2 divisors, whose sum is σ = 21000201122364. Its totient is φ = 21000201122362.

The previous prime is 21000201122357. The next prime is 21000201122413. The reversal of 21000201122363 is 36322110200012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21000201122363 is a prime.

It is not a weakly prime, because it can be changed into another prime (21000201125363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500100561181 + 10500100561182.

It is an arithmetic number, because the mean of its divisors is an integer number (10500100561182).

Almost surely, 2^{21000201122363} is an apocalyptic number.

21000201122363 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000201122363 is an equidigital number, since it uses as much as digits as its factorization.

21000201122363 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.

Adding to 21000201122363 its reverse (36322110200012), we get a palindrome (57322311322375).

The spelling of 21000201122363 in words is "twenty-one trillion, two hundred one million, one hundred twenty-two thousand, three hundred sixty-three".