22121101202101 has 12 divisors (see below), whose sum is σ = 25226950956480. Its totient is φ = 19235740170680.

The previous prime is 22121101202029. The next prime is 22121101202119. The reversal of 22121101202101 is 10120210112122.

It is not a de Polignac number, because 22121101202101 - 2⁷ = 22121101201973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121101202801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1900759021 + ... + 1900770658.

It is an arithmetic number, because the mean of its divisors is an integer number (2102245913040).

Almost surely, 2^{22121101202101} is an apocalyptic number.

It is an amenable number.

22121101202101 is a deficient number, since it is larger than the sum of its proper divisors (3105849754379).

22121101202101 is a wasteful number, since it uses less digits than its factorization.

22121101202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801529736 (or 3801529713 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22121101202101 its reverse (10120210112122), we get a palindrome (32241311314223).

The spelling of 22121101202101 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred one million, two hundred two thousand, one hundred one".