21200222121131 has 2 divisors, whose sum is σ = 21200222121132. Its totient is φ = 21200222121130.

The previous prime is 21200222120989. The next prime is 21200222121151. The reversal of 21200222121131 is 13112122200212.

It is an a-pointer prime, because the next prime (21200222121151) can be obtained adding 21200222121131 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21200222121131 - 2¹⁰ = 21200222120107 is a prime.

It is a super-2 number, since 2×21200222121131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21200222121151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600111060565 + 10600111060566.

It is an arithmetic number, because the mean of its divisors is an integer number (10600111060566).

Almost surely, 2^{21200222121131} is an apocalyptic number.

21200222121131 is a deficient number, since it is larger than the sum of its proper divisors (1).

21200222121131 is an equidigital number, since it uses as much as digits as its factorization.

21200222121131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21200222121131 its reverse (13112122200212), we get a palindrome (34312344321343).

The spelling of 21200222121131 in words is "twenty-one trillion, two hundred billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred thirty-one".