21102000120022 has 16 divisors (see below), whose sum is σ = 31947892973712. Its totient is φ = 10452788881920.

The previous prime is 21102000119987. The next prime is 21102000120137. The reversal of 21102000120022 is 22002100020112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21102000119984 and 21102000120011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21115428 + ... + 22092199.

It is an arithmetic number, because the mean of its divisors is an integer number (1996743310857).

Almost surely, 2^{21102000120022} is an apocalyptic number.

21102000120022 is a deficient number, since it is larger than the sum of its proper divisors (10845892853690).

21102000120022 is a wasteful number, since it uses less digits than its factorization.

21102000120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43209903.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21102000120022 its reverse (22002100020112), we get a palindrome (43104100140134).

The spelling of 21102000120022 in words is "twenty-one trillion, one hundred two billion, one hundred twenty thousand, twenty-two".