22121102011116 has 12 divisors (see below), whose sum is σ = 51615904692632. Its totient is φ = 7373700670368.

The previous prime is 22121102011111. The next prime is 22121102011171. The reversal of 22121102011116 is 61111020112122.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 22121102011092 and 22121102011101.

It is not an unprimeable number, because it can be changed into a prime (22121102011111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 921712583785 + ... + 921712583808.

Almost surely, 2^{22121102011116} is an apocalyptic number.

It is an amenable number.

22121102011116 is an abundant number, since it is smaller than the sum of its proper divisors (29494802681516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22121102011116 is a wasteful number, since it uses less digits than its factorization.

22121102011116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843425167600 (or 1843425167598 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 22121102011116 its reverse (61111020112122), we get a palindrome (83232122123238).

The spelling of 22121102011116 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred two million, eleven thousand, one hundred sixteen".