22012021212101 has 8 divisors (see below), whose sum is σ = 22249278761304. Its totient is φ = 21774974469120.

The previous prime is 22012021212089. The next prime is 22012021212113. The reversal of 22012021212101 is 10121212021022.

It is an interprime number because it is at equal distance from previous prime (22012021212089) and next prime (22012021212113).

It can be written as a sum of positive squares in 4 ways, for example, as 1673274189601 + 20338747022500 = 1293551^2 + 4509850^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22012021212101 - 2⁶ = 22012021212037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22012021212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012021212151) 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 7 ways as a sum of consecutive naturals, for example, 52491590 + ... + 52909271.

It is an arithmetic number, because the mean of its divisors is an integer number (2781159845163).

Almost surely, 2^{22012021212101} is an apocalyptic number.

It is an amenable number.

22012021212101 is a deficient number, since it is larger than the sum of its proper divisors (237257549203).

22012021212101 is a wasteful number, since it uses less digits than its factorization.

22012021212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105403111.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22012021212101 its reverse (10121212021022), we get a palindrome (32133233233123).

The spelling of 22012021212101 in words is "twenty-two trillion, twelve billion, twenty-one million, two hundred twelve thousand, one hundred one".