2221301220111 has 24 divisors (see below), whose sum is σ = 3226396087200. Its totient is φ = 1472637044736.

The previous prime is 2221301220071. The next prime is 2221301220133. The reversal of 2221301220111 is 1110221031222.

It is not a de Polignac number, because 2221301220111 - 2¹⁰ = 2221301219087 is a prime.

It is a super-2 number, since 2×2221301220111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221301220211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3023455 + ... + 3685631.

It is an arithmetic number, because the mean of its divisors is an integer number (134433170300).

Almost surely, 2^{2221301220111} is an apocalyptic number.

2221301220111 is a deficient number, since it is larger than the sum of its proper divisors (1005094867089).

2221301220111 is a wasteful number, since it uses less digits than its factorization.

2221301220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664255 (or 664252 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2221301220111 its reverse (1110221031222), we get a palindrome (3331522251333).

The spelling of 2221301220111 in words is "two trillion, two hundred twenty-one billion, three hundred one million, two hundred twenty thousand, one hundred eleven".