2221332051663 has 32 divisors (see below), whose sum is σ = 3293168686080. Its totient is φ = 1479850637760.

The previous prime is 2221332051649. The next prime is 2221332051703. The reversal of 2221332051663 is 3661502331222.

2221332051663 is a `hidden beast` number, since 2 + 2 + 2 + 133 + 2 + 0 + 516 + 6 + 3 = 666.

2221332051663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221332051663 - 2¹² = 2221332047567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221332051563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 399301920 + ... + 399307482.

It is an arithmetic number, because the mean of its divisors is an integer number (102911521440).

Almost surely, 2^{2221332051663} is an apocalyptic number.

2221332051663 is a deficient number, since it is larger than the sum of its proper divisors (1071836634417).

2221332051663 is a wasteful number, since it uses less digits than its factorization.

2221332051663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13276 (or 13270 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 2221332051663 its reverse (3661502331222), we get a palindrome (5882834382885).

The spelling of 2221332051663 in words is "two trillion, two hundred twenty-one billion, three hundred thirty-two million, fifty-one thousand, six hundred sixty-three".