22211122121112 has 64 divisors (see below), whose sum is σ = 56576927664000. Its totient is φ = 7264304273664.

The previous prime is 22211122121107. The next prime is 22211122121159. The reversal of 22211122121112 is 21112122111222.

It is a super-2 number, since 2×22211122121112² (a number of 27 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14255437 + ... + 15736572.

It is an arithmetic number, because the mean of its divisors is an integer number (884014494750).

Almost surely, 2^{22211122121112} is an apocalyptic number.

It is an amenable number.

22211122121112 is an abundant number, since it is smaller than the sum of its proper divisors (34365805542888).

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

22211122121112 is a wasteful number, since it uses less digits than its factorization.

22211122121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29992600 (or 29992596 counting only the distinct ones).

The product of its digits is 128, while the sum is 21.

Adding to 22211122121112 its reverse (21112122111222), we get a palindrome (43323244232334).

The spelling of 22211122121112 in words is "twenty-two trillion, two hundred eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twelve".