1120001122020 has 384 divisors, whose sum is σ = 3506575048704. Its totient is φ = 267051840000.

The previous prime is 1120001122013. The next prime is 1120001122021. The reversal of 1120001122020 is 202211000211.

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 = 1120001121987 and 1120001122005.

It is not an unprimeable number, because it can be changed into a prime (1120001122021) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1540578897 + ... + 1540579623.

It is an arithmetic number, because the mean of its divisors is an integer number (9131705856).

Almost surely, 2^{1120001122020} is an apocalyptic number.

1120001122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1120001122020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1753287524352).

1120001122020 is an abundant number, since it is smaller than the sum of its proper divisors (2386573926684).

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

1120001122020 is a wasteful number, since it uses less digits than its factorization.

1120001122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 1040 counting only the distinct ones).

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

Adding to 1120001122020 its reverse (202211000211), we get a palindrome (1322212122231).

The spelling of 1120001122020 in words is "one trillion, one hundred twenty billion, one million, one hundred twenty-two thousand, twenty".