22011122212122 has 16 divisors (see below), whose sum is σ = 44189629387200. Its totient is φ = 7309143243552.

The previous prime is 22011122212117. The next prime is 22011122212171. The reversal of 22011122212122 is 22121222111022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6974371747 + ... + 6974374902.

It is an arithmetic number, because the mean of its divisors is an integer number (2761851836700).

Almost surely, 2^{22011122212122} is an apocalyptic number.

22011122212122 is an abundant number, since it is smaller than the sum of its proper divisors (22178507175078).

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

22011122212122 is a wasteful number, since it uses less digits than its factorization.

22011122212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13948746917.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 22011122212122 its reverse (22121222111022), we get a palindrome (44132344323144).

The spelling of 22011122212122 in words is "twenty-two trillion, eleven billion, one hundred twenty-two million, two hundred twelve thousand, one hundred twenty-two".