2221122101 has 12 divisors (see below), whose sum is σ = 2442952512. Its totient is φ = 2017917000.

The previous prime is 2221122073. The next prime is 2221122109. The reversal of 2221122101 is 1012211222.

It is a de Polignac number, because none of the positive numbers 2^k-2221122101 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221122109) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 221486 + ... + 231296.

It is an arithmetic number, because the mean of its divisors is an integer number (203579376).

Almost surely, 2^2221122101 is an apocalyptic number.

It is an amenable number.

2221122101 is a deficient number, since it is larger than the sum of its proper divisors (221830411).

2221122101 is a wasteful number, since it uses less digits than its factorization.

2221122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11704 (or 11693 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2221122101 is about 47128.7820869583. The cubic root of 2221122101 is about 1304.7405033959.

Adding to 2221122101 its reverse (1012211222), we get a palindrome (3233333323).

The spelling of 2221122101 in words is "two billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred one".