101040221100 has 288 divisors, whose sum is σ = 360651916800. Its totient is φ = 21268316160.

The previous prime is 101040221033. The next prime is 101040221147. The reversal of 101040221100 is 1122040101.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12253579 + ... + 12261821.

It is an arithmetic number, because the mean of its divisors is an integer number (1252263600).

Almost surely, 2^101040221100 is an apocalyptic number.

101040221100 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 101040221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180325958400).

101040221100 is an abundant number, since it is smaller than the sum of its proper divisors (259611695700).

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

101040221100 is a wasteful number, since it uses less digits than its factorization.

101040221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8729 (or 8722 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101040221100 its reverse (1122040101), we get a palindrome (102162261201).

The spelling of 101040221100 in words is "one hundred one billion, forty million, two hundred twenty-one thousand, one hundred".