2001210121002 has 32 divisors (see below), whose sum is σ = 4086862987392. Its totient is φ = 653129650944.

The previous prime is 2001210120997. The next prime is 2001210121003.

2001210121002 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (2001210121003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16615078 + ... + 16735089.

It is an arithmetic number, because the mean of its divisors is an integer number (127714468356).

Almost surely, 2^{2001210121002} is an apocalyptic number.

2001210121002 is an abundant number, since it is smaller than the sum of its proper divisors (2085652866390).

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

2001210121002 is a wasteful number, since it uses less digits than its factorization.

2001210121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33350382.

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

It can be divided in two parts, 2001210 and 121002, that added together give a palindrome (2122212).

The spelling of 2001210121002 in words is "two trillion, one billion, two hundred ten million, one hundred twenty-one thousand, two".