1102112020 has 48 divisors (see below), whose sum is σ = 2337527808. Its totient is φ = 436471040.

The previous prime is 1102112017. The next prime is 1102112047. The reversal of 1102112020 is 202112011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1102111988 and 1102112006.

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, 1004112 + ... + 1005208.

It is an arithmetic number, because the mean of its divisors is an integer number (48698496).

Almost surely, 2^1102112020 is an apocalyptic number.

1102112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102112020 is an abundant number, since it is smaller than the sum of its proper divisors (1235415788).

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

1102112020 is a wasteful number, since it uses less digits than its factorization.

1102112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1102112020 is about 33198.0725344108. The cubic root of 1102112020 is about 1032.9403586070.

Adding to 1102112020 its reverse (202112011), we get a palindrome (1304224031).

Subtracting from 1102112020 its reverse (202112011), we obtain a palindrome (900000009).

The spelling of 1102112020 in words is "one billion, one hundred two million, one hundred twelve thousand, twenty".