2002001121010 has 96 divisors (see below), whose sum is σ = 4034476434240. Its totient is φ = 714532030080.

The previous prime is 2002001120993. The next prime is 2002001121011. The reversal of 2002001121010 is 101211002002.

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

It is not an unprimeable number, because it can be changed into a prime (2002001121011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45881964 + ... + 45925576.

It is an arithmetic number, because the mean of its divisors is an integer number (42025796190).

Almost surely, 2^{2002001121010} is an apocalyptic number.

2002001121010 is an abundant number, since it is smaller than the sum of its proper divisors (2032475313230).

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

2002001121010 is a wasteful number, since it uses less digits than its factorization.

2002001121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44344 (or 44333 counting only the distinct ones).

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

Adding to 2002001121010 its reverse (101211002002), we get a palindrome (2103212123012).

The spelling of 2002001121010 in words is "two trillion, two billion, one million, one hundred twenty-one thousand, ten".