2133340440421 has 2 divisors, whose sum is σ = 2133340440422. Its totient is φ = 2133340440420.

The previous prime is 2133340440379. The next prime is 2133340440463. The reversal of 2133340440421 is 1240440433312.

It is a balanced prime because it is at equal distance from previous prime (2133340440379) and next prime (2133340440463).

It can be written as a sum of positive squares in only one way, i.e., 1907268719521 + 226071720900 = 1381039^2 + 475470^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133340440421 - 2²⁹ = 2132803569509 is a prime.

It is a super-2 number, since 2×2133340440421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2133340440481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066670220210 + 1066670220211.

It is an arithmetic number, because the mean of its divisors is an integer number (1066670220211).

Almost surely, 2^{2133340440421} is an apocalyptic number.

It is an amenable number.

2133340440421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2133340440421 is an equidigital number, since it uses as much as digits as its factorization.

2133340440421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 2133340440421 its reverse (1240440433312), we get a palindrome (3373780873733).

The spelling of 2133340440421 in words is "two trillion, one hundred thirty-three billion, three hundred forty million, four hundred forty thousand, four hundred twenty-one".