2221210101 has 16 divisors (see below), whose sum is σ = 3231641088. Its totient is φ = 1345858800.

The previous prime is 2221210091. The next prime is 2221210127. The reversal of 2221210101 is 1010121222.

It is not a de Polignac number, because 2221210101 - 2⁹ = 2221209589 is a prime.

It is a super-3 number, since 3×2221210101³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221210801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246070 + ... + 254936.

It is an arithmetic number, because the mean of its divisors is an integer number (201977568).

Almost surely, 2^2221210101 is an apocalyptic number.

It is an amenable number.

2221210101 is a deficient number, since it is larger than the sum of its proper divisors (1010430987).

2221210101 is a wasteful number, since it uses less digits than its factorization.

2221210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16472.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2221210101 is about 47129.7156897854. The cubic root of 2221210101 is about 1304.7577342733.

Adding to 2221210101 its reverse (1010121222), we get a palindrome (3231331323).

The spelling of 2221210101 in words is "two billion, two hundred twenty-one million, two hundred ten thousand, one hundred one".