212122101100101 has 8 divisors (see below), whose sum is σ = 289406897625120. Its totient is φ = 138126019320912.

The previous prime is 212122101100081. The next prime is 212122101100139. The reversal of 212122101100101 is 101001101221212.

It is a happy number.

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

It is not a de Polignac number, because 212122101100101 - 2²⁹ = 212121564229189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212122101100601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822178686306 + ... + 822178686563.

It is an arithmetic number, because the mean of its divisors is an integer number (36175862203140).

Almost surely, 2^{212122101100101} is an apocalyptic number.

It is an amenable number.

212122101100101 is a deficient number, since it is larger than the sum of its proper divisors (77284796525019).

212122101100101 is a wasteful number, since it uses less digits than its factorization.

212122101100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644357372915.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212122101100101 its reverse (101001101221212), we get a palindrome (313123202321313).

The spelling of 212122101100101 in words is "two hundred twelve trillion, one hundred twenty-two billion, one hundred one million, one hundred thousand, one hundred one".