100010101100020 has 96 divisors (see below), whose sum is σ = 223379867692800. Its totient is φ = 37503960367104.

The previous prime is 100010101100009. The next prime is 100010101100053. The reversal of 100010101100020 is 20001101010001.

It is a super-2 number, since 2×100010101100020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100010101099976 and 100010101100012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54241522 + ... + 56054998.

It is an arithmetic number, because the mean of its divisors is an integer number (2326873621800).

Almost surely, 2^{100010101100020} is an apocalyptic number.

100010101100020 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 100010101100020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111689933846400).

100010101100020 is an abundant number, since it is smaller than the sum of its proper divisors (123369766592780).

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

100010101100020 is a wasteful number, since it uses less digits than its factorization.

100010101100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815017 (or 1815015 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 100010101100020 its reverse (20001101010001), we get a palindrome (120011202110021).

The spelling of 100010101100020 in words is "one hundred trillion, ten billion, one hundred one million, one hundred thousand, twenty".