100000120221040 has 320 divisors, whose sum is σ = 270771334525440. Its totient is φ = 34023720038400.

The previous prime is 100000120221031. The next prime is 100000120221073. The reversal of 100000120221040 is 40122021000001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 100000120221040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2534773315 + ... + 2534812765.

It is an arithmetic number, because the mean of its divisors is an integer number (846160420392).

Almost surely, 2^{100000120221040} is an apocalyptic number.

100000120221040 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 100000120221040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135385667262720).

100000120221040 is an abundant number, since it is smaller than the sum of its proper divisors (170771214304400).

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

100000120221040 is a wasteful number, since it uses less digits than its factorization.

100000120221040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43000 (or 42994 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100000120221040 its reverse (40122021000001), we get a palindrome (140122141221041).

The spelling of 100000120221040 in words is "one hundred trillion, one hundred twenty million, two hundred twenty-one thousand, forty".