1001120220020 has 12 divisors (see below), whose sum is σ = 2102352462084. Its totient is φ = 400448088000.

The previous prime is 1001120220017. The next prime is 1001120220091. The reversal of 1001120220020 is 200220211001.

It is a happy number.

1001120220020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 326573389156 + 674546830864 = 571466^2 + 821308^2 .

It is a super-3 number, since 3×1001120220020³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001120219983 and 1001120220010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25028005481 + ... + 25028005520.

It is an arithmetic number, because the mean of its divisors is an integer number (175196038507).

Almost surely, 2^{1001120220020} is an apocalyptic number.

1001120220020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001120220020 is an abundant number, since it is smaller than the sum of its proper divisors (1101232242064).

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

1001120220020 is a wasteful number, since it uses less digits than its factorization.

1001120220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50056011010 (or 50056011008 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1001120220020 its reverse (200220211001), we get a palindrome (1201340431021).

The spelling of 1001120220020 in words is "one trillion, one billion, one hundred twenty million, two hundred twenty thousand, twenty".