21000022110002 has 24 divisors (see below), whose sum is σ = 34137212820480. Its totient is φ = 9684444173040.

The previous prime is 21000022109999. The next prime is 21000022110013. The reversal of 21000022110002 is 20001122000012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24819602 + ... + 25651757.

It is an arithmetic number, because the mean of its divisors is an integer number (1422383867520).

Almost surely, 2^{21000022110002} is an apocalyptic number.

21000022110002 is a deficient number, since it is larger than the sum of its proper divisors (13137190710478).

21000022110002 is a wasteful number, since it uses less digits than its factorization.

21000022110002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50472618 (or 50472605 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 21000022110002 its reverse (20001122000012), we get a palindrome (41001144110014).

The spelling of 21000022110002 in words is "twenty-one trillion, twenty-two million, one hundred ten thousand, two".