2002001111020 has 24 divisors (see below), whose sum is σ = 4204250102304. Its totient is φ = 800791345536.

The previous prime is 2002001111017. The next prime is 2002001111129. The reversal of 2002001111020 is 201111002002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2002001110988 and 2002001111006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1402129 + ... + 2443351.

It is an arithmetic number, because the mean of its divisors is an integer number (175177087596).

Almost surely, 2^{2002001111020} is an apocalyptic number.

2002001111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002001111020 is an abundant number, since it is smaller than the sum of its proper divisors (2202248991284).

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

2002001111020 is a wasteful number, since it uses less digits than its factorization.

2002001111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137369 (or 1137367 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2002001111020 its reverse (201111002002), we get a palindrome (2203112113022).

The spelling of 2002001111020 in words is "two trillion, two billion, one million, one hundred eleven thousand, twenty".