2002111200040 has 128 divisors (see below), whose sum is σ = 5171387535360. Its totient is φ = 683362577664.

The previous prime is 2002111199951. The next prime is 2002111200041. The reversal of 2002111200040 is 400021112002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2002111200041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87390267 + ... + 87413173.

It is an arithmetic number, because the mean of its divisors is an integer number (40401465120).

Almost surely, 2^{2002111200040} is an apocalyptic number.

2002111200040 is a gapful number since it is divisible by the number (20) 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 2002111200040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2585693767680).

2002111200040 is an abundant number, since it is smaller than the sum of its proper divisors (3169276335320).

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

2002111200040 is a wasteful number, since it uses less digits than its factorization.

2002111200040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24311 (or 24307 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2002111200040 its reverse (400021112002), we get a palindrome (2402132312042).

The spelling of 2002111200040 in words is "two trillion, two billion, one hundred eleven million, two hundred thousand, forty".