22000021112 has 32 divisors (see below), whose sum is σ = 43448400000. Its totient is φ = 10414509408.

The previous prime is 22000021103. The next prime is 22000021117. The reversal of 22000021112 is 21112000022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22000021093 and 22000021102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000021117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201389 + ... + 290787.

It is an arithmetic number, because the mean of its divisors is an integer number (1357762500).

Almost surely, 2^22000021112 is an apocalyptic number.

It is an amenable number.

22000021112 is a deficient number, since it is larger than the sum of its proper divisors (21448378888).

22000021112 is a wasteful number, since it uses less digits than its factorization.

22000021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91043 (or 91039 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22000021112 its reverse (21112000022), we get a palindrome (43112021134).

The spelling of 22000021112 in words is "twenty-two billion, twenty-one thousand, one hundred twelve".