402220420240273 has 2 divisors, whose sum is σ = 402220420240274. Its totient is φ = 402220420240272.

The previous prime is 402220420240213. The next prime is 402220420240519. The reversal of 402220420240273 is 372042024022204.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 352096965477009 + 50123454763264 = 18764247^2 + 7079792^2 .

It is a cyclic number.

It is not a de Polignac number, because 402220420240273 - 2¹⁷ = 402220420109201 is a prime.

It is a super-2 number, since 2×402220420240273² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402220420240213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201110210120136 + 201110210120137.

It is an arithmetic number, because the mean of its divisors is an integer number (201110210120137).

Almost surely, 2^{402220420240273} is an apocalyptic number.

It is an amenable number.

402220420240273 is a deficient number, since it is larger than the sum of its proper divisors (1).

402220420240273 is an equidigital number, since it uses as much as digits as its factorization.

402220420240273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 34.

Adding to 402220420240273 its reverse (372042024022204), we get a palindrome (774262444262477).

The spelling of 402220420240273 in words is "four hundred two trillion, two hundred twenty billion, four hundred twenty million, two hundred forty thousand, two hundred seventy-three".