2121120112002 has 16 divisors (see below), whose sum is σ = 4260447266400. Its totient is φ = 704005530272.

The previous prime is 2121120111977. The next prime is 2121120112021. The reversal of 2121120112002 is 2002110211212.

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, 758625252 + ... + 758628047.

It is an arithmetic number, because the mean of its divisors is an integer number (266277954150).

Almost surely, 2^{2121120112002} is an apocalyptic number.

2121120112002 is an abundant number, since it is smaller than the sum of its proper divisors (2139327154398).

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

2121120112002 is a wasteful number, since it uses less digits than its factorization.

2121120112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517253537.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2121120112002 its reverse (2002110211212), we get a palindrome (4123230323214).

The spelling of 2121120112002 in words is "two trillion, one hundred twenty-one billion, one hundred twenty million, one hundred twelve thousand, two".