2121656002 has 16 divisors (see below), whose sum is σ = 3206460672. Its totient is φ = 1052848800.

The previous prime is 2121655997. The next prime is 2121656041. The reversal of 2121656002 is 2006561212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427278 + ... + 432214.

It is an arithmetic number, because the mean of its divisors is an integer number (200403792).

Almost surely, 2^2121656002 is an apocalyptic number.

2121656002 is a deficient number, since it is larger than the sum of its proper divisors (1084804670).

2121656002 is a wasteful number, since it uses less digits than its factorization.

2121656002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6513.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2121656002 is about 46061.4372550401. The cubic root of 2121656002 is about 1284.9660600583.

The spelling of 2121656002 in words is "two billion, one hundred twenty-one million, six hundred fifty-six thousand, two".