11021140020 has 48 divisors (see below), whose sum is σ = 33664575168. Its totient is φ = 2671791360.

The previous prime is 11021140007. The next prime is 11021140043. The reversal of 11021140020 is 2004112011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11021139978 and 11021140005.

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, 8348689 + ... + 8350008.

It is an arithmetic number, because the mean of its divisors is an integer number (701345316).

Almost surely, 2^11021140020 is an apocalyptic number.

11021140020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021140020 is an abundant number, since it is smaller than the sum of its proper divisors (22643435148).

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

11021140020 is a wasteful number, since it uses less digits than its factorization.

11021140020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16698720 (or 16698718 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11021140020 its reverse (2004112011), we get a palindrome (13025252031).

The spelling of 11021140020 in words is "eleven billion, twenty-one million, one hundred forty thousand, twenty".