2001211040140 has 48 divisors (see below), whose sum is σ = 4527085217760. Its totient is φ = 738701429760.

The previous prime is 2001211040099. The next prime is 2001211040351. The reversal of 2001211040140 is 410401121002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149245 + ... + 2006164.

It is an arithmetic number, because the mean of its divisors is an integer number (94314275370).

Almost surely, 2^{2001211040140} is an apocalyptic number.

2001211040140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001211040140 is an abundant number, since it is smaller than the sum of its proper divisors (2525874177620).

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

2001211040140 is a wasteful number, since it uses less digits than its factorization.

2001211040140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159002 (or 2159000 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2001211040140 its reverse (410401121002), we get a palindrome (2411612161142).

The spelling of 2001211040140 in words is "two trillion, one billion, two hundred eleven million, forty thousand, one hundred forty".