2211921943824 has 20 divisors (see below), whose sum is σ = 5714131688336. Its totient is φ = 737307314592.

The previous prime is 2211921943807. The next prime is 2211921943859. The reversal of 2211921943824 is 4283491291122.

It is a super-2 number, since 2×2211921943824² (a number of 25 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 46081707163 = 2211921943824 / (2 + 2 + 1 + 1 + 9 + 2 + 1 + 9 + 4 + 3 + 8 + 2 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23040853534 + ... + 23040853629.

Almost surely, 2^{2211921943824} is an apocalyptic number.

2211921943824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2211921943824 is an abundant number, since it is smaller than the sum of its proper divisors (3502209744512).

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

2211921943824 is a wasteful number, since it uses less digits than its factorization.

2211921943824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46081707174 (or 46081707168 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The spelling of 2211921943824 in words is "two trillion, two hundred eleven billion, nine hundred twenty-one million, nine hundred forty-three thousand, eight hundred twenty-four".