1402144200221 has 2 divisors, whose sum is σ = 1402144200222. Its totient is φ = 1402144200220.

The previous prime is 1402144200187. The next prime is 1402144200229. The reversal of 1402144200221 is 1220024412041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1361445576100 + 40698624121 = 1166810^2 + 201739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402144200221 - 2³⁰ = 1401070458397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1402144200229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701072100110 + 701072100111.

It is an arithmetic number, because the mean of its divisors is an integer number (701072100111).

Almost surely, 2^{1402144200221} is an apocalyptic number.

It is an amenable number.

1402144200221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402144200221 is an equidigital number, since it uses as much as digits as its factorization.

1402144200221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 1402144200221 its reverse (1220024412041), we get a palindrome (2622168612262).

The spelling of 1402144200221 in words is "one trillion, four hundred two billion, one hundred forty-four million, two hundred thousand, two hundred twenty-one".