22111210000 has 100 divisors (see below), whose sum is σ = 58400418384. Its totient is φ = 8040400000.

The previous prime is 22111209979. The next prime is 22111210013. The reversal of 22111210000 is 1211122.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9495 + ... + 210505.

Almost surely, 2^22111210000 is an apocalyptic number.

22111210000 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 22111210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29200209192).

22111210000 is an abundant number, since it is smaller than the sum of its proper divisors (36289208384).

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

22111210000 is a wasteful number, since it uses less digits than its factorization.

22111210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201050 (or 201029 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22111210000 its reverse (1211122), we get a palindrome (22112421122).

The spelling of 22111210000 in words is "twenty-two billion, one hundred eleven million, two hundred ten thousand".