2101002121002 has 16 divisors (see below), whose sum is σ = 4202945815680. Its totient is φ = 700177111392.

The previous prime is 2101002120991. The next prime is 2101002121027. The reversal of 2101002121002 is 2001212001012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39203227 + ... + 39256782.

It is an arithmetic number, because the mean of its divisors is an integer number (262684113480).

Almost surely, 2^{2101002121002} is an apocalyptic number.

2101002121002 is an abundant number, since it is smaller than the sum of its proper divisors (2101943694678).

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

2101002121002 is a wasteful number, since it uses less digits than its factorization.

2101002121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78464477.

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

Adding to 2101002121002 its reverse (2001212001012), we get a palindrome (4102214122014).

The spelling of 2101002121002 in words is "two trillion, one hundred one billion, two million, one hundred twenty-one thousand, two".