22021212212101 has 8 divisors (see below), whose sum is σ = 22041330729984. Its totient is φ = 22001095408800.

The previous prime is 22021212212093. The next prime is 22021212212141. The reversal of 22021212212101 is 10121221212022.

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 22021212212101 - 2³ = 22021212212093 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 (22021212212141) 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, 26013825 + ... + 26847001.

It is an arithmetic number, because the mean of its divisors is an integer number (2755166341248).

Almost surely, 2^{22021212212101} is an apocalyptic number.

It is an amenable number.

22021212212101 is a deficient number, since it is larger than the sum of its proper divisors (20118517883).

22021212212101 is a wasteful number, since it uses less digits than its factorization.

22021212212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857291.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22021212212101 its reverse (10121221212022), we get a palindrome (32142433424123).

The spelling of 22021212212101 in words is "twenty-two trillion, twenty-one billion, two hundred twelve million, two hundred twelve thousand, one hundred one".