21663913003022 has 16 divisors (see below), whose sum is σ = 32531434548480. Its totient is φ = 10820107050168.

The previous prime is 21663913003009. The next prime is 21663913003043. The reversal of 21663913003022 is 22030031936612.

It is a super-2 number, since 2×21663913003022² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6411413 + ... + 9188799.

It is an arithmetic number, because the mean of its divisors is an integer number (2033214659280).

Almost surely, 2^{21663913003022} is an apocalyptic number.

21663913003022 is a deficient number, since it is larger than the sum of its proper divisors (10867521545458).

21663913003022 is a wasteful number, since it uses less digits than its factorization.

21663913003022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781655.

The product of its (nonzero) digits is 69984, while the sum is 38.

Adding to 21663913003022 its reverse (22030031936612), we get a palindrome (43693944939634).

The spelling of 21663913003022 in words is "twenty-one trillion, six hundred sixty-three billion, nine hundred thirteen million, three thousand, twenty-two".