2121884855212 has 12 divisors (see below), whose sum is σ = 3718364393296. Its totient is φ = 1059495028560.

The previous prime is 2121884855197. The next prime is 2121884855219. The reversal of 2121884855212 is 2125584881212.

It is not an unprimeable number, because it can be changed into a prime (2121884855219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361846464 + ... + 361852327.

Almost surely, 2^{2121884855212} is an apocalyptic number.

It is an amenable number.

2121884855212 is a deficient number, since it is larger than the sum of its proper divisors (1596479538084).

2121884855212 is a wasteful number, since it uses less digits than its factorization.

2121884855212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723699528 (or 723699526 counting only the distinct ones).

The product of its digits is 819200, while the sum is 49.

The spelling of 2121884855212 in words is "two trillion, one hundred twenty-one billion, eight hundred eighty-four million, eight hundred fifty-five thousand, two hundred twelve".