2240121343021 has 2 divisors, whose sum is σ = 2240121343022. Its totient is φ = 2240121343020.

The previous prime is 2240121342983. The next prime is 2240121343027. The reversal of 2240121343021 is 1203431210422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2214709476100 + 25411866921 = 1488190^2 + 159411^2 .

It is a cyclic number.

It is not a de Polignac number, because 2240121343021 - 2¹¹ = 2240121340973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2240121343027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120060671510 + 1120060671511.

It is an arithmetic number, because the mean of its divisors is an integer number (1120060671511).

Almost surely, 2^{2240121343021} is an apocalyptic number.

It is an amenable number.

2240121343021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240121343021 is an equidigital number, since it uses as much as digits as its factorization.

2240121343021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2240121343021 its reverse (1203431210422), we get a palindrome (3443552553443).

The spelling of 2240121343021 in words is "two trillion, two hundred forty billion, one hundred twenty-one million, three hundred forty-three thousand, twenty-one".