101111220000 has 960 divisors, whose sum is σ = 439851202560. Its totient is φ = 22087296000.

The previous prime is 101111219971. The next prime is 101111220013. The reversal of 101111220000 is 22111101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 86939419 + ... + 86940581.

It is an arithmetic number, because the mean of its divisors is an integer number (458178336).

Almost surely, 2^101111220000 is an apocalyptic number.

101111220000 is a gapful number since it is divisible by the number (10) 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 101111220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219925601280).

101111220000 is an abundant number, since it is smaller than the sum of its proper divisors (338739982560).

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

101111220000 is a wasteful number, since it uses less digits than its factorization.

101111220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232 (or 1203 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101111220000 its reverse (22111101), we get a palindrome (101133331101).

The spelling of 101111220000 in words is "one hundred one billion, one hundred eleven million, two hundred twenty thousand".