2111001120221 has 8 divisors (see below), whose sum is σ = 2435995745664. Its totient is φ = 1791862254000.

The previous prime is 2111001120209. The next prime is 2111001120253. The reversal of 2111001120221 is 1220211001112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2111001120221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111001120196 and 2111001120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111001120281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1463939030 + ... + 1463940471.

It is an arithmetic number, because the mean of its divisors is an integer number (304499468208).

Almost surely, 2^{2111001120221} is an apocalyptic number.

It is an amenable number.

2111001120221 is a deficient number, since it is larger than the sum of its proper divisors (324994625443).

2111001120221 is a wasteful number, since it uses less digits than its factorization.

2111001120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927879611.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2111001120221 its reverse (1220211001112), we get a palindrome (3331212121333).

The spelling of 2111001120221 in words is "two trillion, one hundred eleven billion, one million, one hundred twenty thousand, two hundred twenty-one".