22210101 has 12 divisors (see below), whose sum is σ = 32948812. Its totient is φ = 14406336.

The previous prime is 22210091. The next prime is 22210103. The reversal of 22210101 is 10101222.

It can be written as a sum of positive squares in 2 ways, for example, as 8259876 + 13950225 = 2874^2 + 3735^2 .

It is not a de Polignac number, because 22210101 - 2⁹ = 22209589 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 Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210103) 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, 33016 + ... + 33681.

Almost surely, 2^22210101 is an apocalyptic number.

It is an amenable number.

22210101 is a deficient number, since it is larger than the sum of its proper divisors (10738711).

22210101 is a wasteful number, since it uses less digits than its factorization.

22210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66740 (or 66737 counting only the distinct ones).

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

The square root of 22210101 is about 4712.7593827820. The cubic root of 22210101 is about 281.0930952966.

Adding to 22210101 its reverse (10101222), we get a palindrome (32311323).

It can be divided in two parts, 222 and 10101, that multiplied together give a palindrome (2242422).

The spelling of 22210101 in words is "twenty-two million, two hundred ten thousand, one hundred one".