22011043100 has 108 divisors (see below), whose sum is σ = 49145021184. Its totient is φ = 8556387840.

The previous prime is 22011043013. The next prime is 22011043111. The reversal of 22011043100 is 134011022.

It is a super-2 number, since 2×22011043100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35673992 + ... + 35674608.

Almost surely, 2^22011043100 is an apocalyptic number.

22011043100 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 22011043100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24572510592).

22011043100 is an abundant number, since it is smaller than the sum of its proper divisors (27133978084).

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

22011043100 is a wasteful number, since it uses less digits than its factorization.

22011043100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 22011043100 its reverse (134011022), we get a palindrome (22145054122).

The spelling of 22011043100 in words is "twenty-two billion, eleven million, forty-three thousand, one hundred".