110001021020 has 48 divisors (see below), whose sum is σ = 254497463136. Its totient is φ = 39604320000.

The previous prime is 110001021017. The next prime is 110001021073. The reversal of 110001021020 is 20120100011.

It is a junction number, because it is equal to n+sod(n) for n = 110001020989 and 110001021007.

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, 2453051 + ... + 2497490.

It is an arithmetic number, because the mean of its divisors is an integer number (5302030482).

Almost surely, 2^110001021020 is an apocalyptic number.

110001021020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110001021020 is an abundant number, since it is smaller than the sum of its proper divisors (144496442116).

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

110001021020 is a wasteful number, since it uses less digits than its factorization.

110001021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950662 (or 4950660 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 110001021020 its reverse (20120100011), we get a palindrome (130121121031).

The spelling of 110001021020 in words is "one hundred ten billion, one million, twenty-one thousand, twenty".