112021020021220 has 12 divisors (see below), whose sum is σ = 235244142044604. Its totient is φ = 44808408008480.

The previous prime is 112021020021203. The next prime is 112021020021223. The reversal of 112021020021220 is 22120020120211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66916686388644 + 45104333632576 = 8180262^2 + 6715976^2 .

It is a junction number, because it is equal to n+sod(n) for n = 112021020021194 and 112021020021203.

It is not an unprimeable number, because it can be changed into a prime (112021020021223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2800525500511 + ... + 2800525500550.

It is an arithmetic number, because the mean of its divisors is an integer number (19603678503717).

Almost surely, 2^{112021020021220} is an apocalyptic number.

112021020021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112021020021220 is an abundant number, since it is smaller than the sum of its proper divisors (123223122023384).

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

112021020021220 is a wasteful number, since it uses less digits than its factorization.

112021020021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601051001070 (or 5601051001068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 112021020021220 its reverse (22120020120211), we get a palindrome (134141040141431).

The spelling of 112021020021220 in words is "one hundred twelve trillion, twenty-one billion, twenty million, twenty-one thousand, two hundred twenty".