100110021021020 has 48 divisors (see below), whose sum is σ = 218737502796960. Its totient is φ = 38439693901056.

The previous prime is 100110021021001. The next prime is 100110021021047. The reversal of 100110021021020 is 20120120011001.

It is a junction number, because it is equal to n+sod(n) for n = 100110021020992 and 100110021021010.

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, 498753662 + ... + 498954341.

It is an arithmetic number, because the mean of its divisors is an integer number (4557031308270).

Almost surely, 2^{100110021021020} is an apocalyptic number.

100110021021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100110021021020 is an abundant number, since it is smaller than the sum of its proper divisors (118627481775940).

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

100110021021020 is a wasteful number, since it uses less digits than its factorization.

100110021021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997708214 (or 997708212 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100110021021020 its reverse (20120120011001), we get a palindrome (120230141032021).

The spelling of 100110021021020 in words is "one hundred trillion, one hundred ten billion, twenty-one million, twenty-one thousand, twenty".