2221000101 has 16 divisors (see below), whose sum is σ = 3293080000. Its totient is φ = 1479447504.

The previous prime is 2221000099. The next prime is 2221000121. The reversal of 2221000101 is 1010001222.

It is not a de Polignac number, because 2221000101 - 2¹ = 2221000099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221000121) 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 15 ways as a sum of consecutive naturals, for example, 150 + ... + 66648.

It is an arithmetic number, because the mean of its divisors is an integer number (205817500).

Almost surely, 2^2221000101 is an apocalyptic number.

It is an amenable number.

2221000101 is a deficient number, since it is larger than the sum of its proper divisors (1072079899).

2221000101 is a wasteful number, since it uses less digits than its factorization.

2221000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67745 (or 67739 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2221000101 is about 47127.4877433542. The cubic root of 2221000101 is about 1304.7166143811.

Adding to 2221000101 its reverse (1010001222), we get a palindrome (3231001323).

The spelling of 2221000101 in words is "two billion, two hundred twenty-one million, one hundred one", and thus it is an aban number.