5402118762221 has 2 divisors, whose sum is σ = 5402118762222. Its totient is φ = 5402118762220.

The previous prime is 5402118762203. The next prime is 5402118762233. The reversal of 5402118762221 is 1222678112045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5389408680100 + 12710082121 = 2321510^2 + 112739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5402118762221 is a prime.

It is a super-2 number, since 2×5402118762221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5402118762421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2701059381110 + 2701059381111.

It is an arithmetic number, because the mean of its divisors is an integer number (2701059381111).

Almost surely, 2^{5402118762221} is an apocalyptic number.

It is an amenable number.

5402118762221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5402118762221 is an equidigital number, since it uses as much as digits as its factorization.

5402118762221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 5402118762221 in words is "five trillion, four hundred two billion, one hundred eighteen million, seven hundred sixty-two thousand, two hundred twenty-one".