100000621005220 has 96 divisors (see below), whose sum is σ = 227537770965120. Its totient is φ = 36697804661760.

The previous prime is 100000621005211. The next prime is 100000621005221. The reversal of 100000621005220 is 22500126000001.

100000621005220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (100000621005221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88469415 + ... + 89592625.

It is an arithmetic number, because the mean of its divisors is an integer number (2370185114220).

Almost surely, 2^{100000621005220} is an apocalyptic number.

100000621005220 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 100000621005220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113768885482560).

100000621005220 is an abundant number, since it is smaller than the sum of its proper divisors (127537149959900).

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

100000621005220 is a wasteful number, since it uses less digits than its factorization.

100000621005220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125325 (or 1125323 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 100000621005220 its reverse (22500126000001), we get a palindrome (122500747005221).

The spelling of 100000621005220 in words is "one hundred trillion, six hundred twenty-one million, five thousand, two hundred twenty".