22012211120 has 80 divisors (see below), whose sum is σ = 52338397152. Its totient is φ = 8607098880.

The previous prime is 22012211101. The next prime is 22012211171. The reversal of 22012211120 is 2111221022.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 22012211095 and 22012211104.

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, 781604 + ... + 809276.

Almost surely, 2^22012211120 is an apocalyptic number.

22012211120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22012211120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26169198576).

22012211120 is an abundant number, since it is smaller than the sum of its proper divisors (30326186032).

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

22012211120 is a wasteful number, since it uses less digits than its factorization.

22012211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27910 (or 27904 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22012211120 its reverse (2111221022), we get a palindrome (24123432142).

The spelling of 22012211120 in words is "twenty-two billion, twelve million, two hundred eleven thousand, one hundred twenty".