101101221120 has 144 divisors (see below), whose sum is σ = 323159441472. Its totient is φ = 26937999360.

The previous prime is 101101221097. The next prime is 101101221191. The reversal of 101101221120 is 21122101101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 101101221096 and 101101221105.

It is a congruent number.

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, 4916460 + ... + 4936980.

It is an arithmetic number, because the mean of its divisors is an integer number (2244162788).

Almost surely, 2^101101221120 is an apocalyptic number.

101101221120 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 101101221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161579720736).

101101221120 is an abundant number, since it is smaller than the sum of its proper divisors (222058220352).

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

101101221120 is a wasteful number, since it uses less digits than its factorization.

101101221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21828 (or 21814 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101101221120 its reverse (21122101101), we get a palindrome (122223322221).

The spelling of 101101221120 in words is "one hundred one billion, one hundred one million, two hundred twenty-one thousand, one hundred twenty".