2121200001131 has 2 divisors, whose sum is σ = 2121200001132. Its totient is φ = 2121200001130.

The previous prime is 2121200001091. The next prime is 2121200001191. The reversal of 2121200001131 is 1311000021212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121200001131 - 2¹⁰ = 2121200000107 is a prime.

It is a super-2 number, since 2×2121200001131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2121200001191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060600000565 + 1060600000566.

It is an arithmetic number, because the mean of its divisors is an integer number (1060600000566).

Almost surely, 2^{2121200001131} is an apocalyptic number.

2121200001131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121200001131 is an equidigital number, since it uses as much as digits as its factorization.

2121200001131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2121200001131 its reverse (1311000021212), we get a palindrome (3432200022343).

The spelling of 2121200001131 in words is "two trillion, one hundred twenty-one billion, two hundred million, one thousand, one hundred thirty-one".