2221010101 has 8 divisors (see below), whose sum is σ = 2391517440. Its totient is φ = 2054931648.

The previous prime is 2221010093. The next prime is 2221010107. The reversal of 2221010101 is 1010101222.

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

It is a cyclic number.

It is not a de Polignac number, because 2221010101 - 2³ = 2221010093 is a prime.

It is a Duffinian number.

2221010101 is a modest number, since divided by 10101 gives 2221 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221010107) 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, 1106181 + ... + 1108186.

It is an arithmetic number, because the mean of its divisors is an integer number (298939680).

Almost surely, 2^2221010101 is an apocalyptic number.

It is an amenable number.

2221010101 is a deficient number, since it is larger than the sum of its proper divisors (170507339).

2221010101 is a wasteful number, since it uses less digits than its factorization.

2221010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214443.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2221010101 is about 47127.5938384297. The cubic root of 2221010101 is about 1304.7185725300.

Adding to 2221010101 its reverse (1010101222), we get a palindrome (3231111323).

It can be divided in two parts, 222 and 1010101, that multiplied together give a palindrome (224242422).

The spelling of 2221010101 in words is "two billion, two hundred twenty-one million, ten thousand, one hundred one".