2221251105 has 16 divisors (see below), whose sum is σ = 3708524160. Its totient is φ = 1133159808.

The previous prime is 2221251083. The next prime is 2221251113. The reversal of 2221251105 is 5011521222.

It is not a de Polignac number, because 2221251105 - 2⁹ = 2221250593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3218860 + ... + 3219549.

It is an arithmetic number, because the mean of its divisors is an integer number (231782760).

Almost surely, 2^2221251105 is an apocalyptic number.

It is an amenable number.

2221251105 is a deficient number, since it is larger than the sum of its proper divisors (1487273055).

2221251105 is a wasteful number, since it uses less digits than its factorization.

2221251105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6438440.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2221251105 is about 47130.1506999500. The cubic root of 2221251105 is about 1304.7657629235.

Adding to 2221251105 its reverse (5011521222), we get a palindrome (7232772327).

The spelling of 2221251105 in words is "two billion, two hundred twenty-one million, two hundred fifty-one thousand, one hundred five".