22102002101 has 4 divisors (see below), whose sum is σ = 22151227500. Its totient is φ = 22052776704.

The previous prime is 22102002089. The next prime is 22102002103. The reversal of 22102002101 is 10120020122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4927899601 + 17174102500 = 70199^2 + 131050^2 .

It is a cyclic number.

It is not a de Polignac number, because 22102002101 - 2⁶ = 22102002037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102002103) 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 3 ways as a sum of consecutive naturals, for example, 24612026 + ... + 24612923.

It is an arithmetic number, because the mean of its divisors is an integer number (5537806875).

Almost surely, 2^22102002101 is an apocalyptic number.

It is an amenable number.

22102002101 is a deficient number, since it is larger than the sum of its proper divisors (49225399).

22102002101 is an equidigital number, since it uses as much as digits as its factorization.

22102002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49225398.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22102002101 its reverse (10120020122), we get a palindrome (32222022223).

The spelling of 22102002101 in words is "twenty-two billion, one hundred two million, two thousand, one hundred one".