22081031700 has 216 divisors, whose sum is σ = 80035939872. Its totient is φ = 4658814720.

The previous prime is 22081031699. The next prime is 22081031761. The reversal of 22081031700 is 713018022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 133327 + ... + 248873.

Almost surely, 2^22081031700 is an apocalyptic number.

22081031700 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 22081031700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40017969936).

22081031700 is an abundant number, since it is smaller than the sum of its proper divisors (57954908172).

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

22081031700 is a wasteful number, since it uses less digits than its factorization.

22081031700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115591 (or 115577 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

Adding to 22081031700 its reverse (713018022), we get a palindrome (22794049722).

The spelling of 22081031700 in words is "twenty-two billion, eighty-one million, thirty-one thousand, seven hundred".