22202001212101 has 4 divisors (see below), whose sum is σ = 22204811244204. Its totient is φ = 22199191180000.

The previous prime is 22202001212093. The next prime is 22202001212107. The reversal of 22202001212101 is 10121210020222.

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 14024837750625 + 8177163461476 = 3744975^2 + 2859574^2 .

It is a cyclic number.

It is not a de Polignac number, because 22202001212101 - 2³ = 22202001212093 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 (22202001212107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1405004200 + ... + 1405020001.

It is an arithmetic number, because the mean of its divisors is an integer number (5551202811051).

Almost surely, 2^{22202001212101} is an apocalyptic number.

It is an amenable number.

22202001212101 is a deficient number, since it is larger than the sum of its proper divisors (2810032103).

22202001212101 is an equidigital number, since it uses as much as digits as its factorization.

22202001212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810032102.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22202001212101 its reverse (10121210020222), we get a palindrome (32323211232323).

The spelling of 22202001212101 in words is "twenty-two trillion, two hundred two billion, one million, two hundred twelve thousand, one hundred one".