21201101100022 has 8 divisors (see below), whose sum is σ = 31802122368000. Its totient is φ = 10600393644024.

The previous prime is 21201101099939. The next prime is 21201101100043. The reversal of 21201101100022 is 22000110110212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21201101099975 and 21201101100011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78284022 + ... + 78554377.

It is an arithmetic number, because the mean of its divisors is an integer number (3975265296000).

Almost surely, 2^{21201101100022} is an apocalyptic number.

21201101100022 is a deficient number, since it is larger than the sum of its proper divisors (10601021267978).

21201101100022 is a wasteful number, since it uses less digits than its factorization.

21201101100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156905990.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21201101100022 its reverse (22000110110212), we get a palindrome (43201211210234).

The spelling of 21201101100022 in words is "twenty-one trillion, two hundred one billion, one hundred one million, one hundred thousand, twenty-two".