21202112100022 has 16 divisors (see below), whose sum is σ = 36518736079872. Its totient is φ = 9043554922920.

The previous prime is 21202112099957. The next prime is 21202112100067. The reversal of 21202112100022 is 22000121120212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21202112099969 and 21202112100005.

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, 3588709318 + ... + 3588715225.

It is an arithmetic number, because the mean of its divisors is an integer number (2282421004992).

Almost surely, 2^{21202112100022} is an apocalyptic number.

21202112100022 is a deficient number, since it is larger than the sum of its proper divisors (15316623979850).

21202112100022 is a wasteful number, since it uses less digits than its factorization.

21202112100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7177424763.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21202112100022 its reverse (22000121120212), we get a palindrome (43202233220234).

The spelling of 21202112100022 in words is "twenty-one trillion, two hundred two billion, one hundred twelve million, one hundred thousand, twenty-two".