1020020211120 has 40 divisors (see below), whose sum is σ = 3162062655216. Its totient is φ = 272005389568.

The previous prime is 1020020211109. The next prime is 1020020211127. The reversal of 1020020211120 is 211120200201.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 1020020211096 and 1020020211105.

It is not an unprimeable number, because it can be changed into a prime (1020020211127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2125041867 + ... + 2125042346.

Almost surely, 2^{1020020211120} is an apocalyptic number.

1020020211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020020211120 is an abundant number, since it is smaller than the sum of its proper divisors (2142042444096).

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

1020020211120 is a wasteful number, since it uses less digits than its factorization.

1020020211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250084229 (or 4250084223 counting only the distinct ones).

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

Adding to 1020020211120 its reverse (211120200201), we get a palindrome (1231140411321).

The spelling of 1020020211120 in words is "one trillion, twenty billion, twenty million, two hundred eleven thousand, one hundred twenty".