2111720801224 has 16 divisors (see below), whose sum is σ = 3959558574300. Its totient is φ = 1055838514752.

The previous prime is 2111720801219. The next prime is 2111720801249. The reversal of 2111720801224 is 4221080271112.

It can be written as a sum of positive squares in 2 ways, for example, as 1921877597124 + 189843204100 = 1386318^2 + 435710^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2321979 + ... + 3100810.

Almost surely, 2^{2111720801224} is an apocalyptic number.

It is an amenable number.

2111720801224 is a deficient number, since it is larger than the sum of its proper divisors (1847837773076).

2111720801224 is a wasteful number, since it uses less digits than its factorization.

2111720801224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5471472 (or 5471468 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 31.

The spelling of 2111720801224 in words is "two trillion, one hundred eleven billion, seven hundred twenty million, eight hundred one thousand, two hundred twenty-four".