212122110101 has 8 divisors (see below), whose sum is σ = 235199479008. Its totient is φ = 189676998000.

The previous prime is 212122110073. The next prime is 212122110113. The reversal of 212122110101 is 101011221212.

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 212122110101 - 2¹⁰ = 212122109077 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 (212122110301) 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, 158063495 + ... + 158064836.

It is an arithmetic number, because the mean of its divisors is an integer number (29399934876).

Almost surely, 2^212122110101 is an apocalyptic number.

It is an amenable number.

212122110101 is a deficient number, since it is larger than the sum of its proper divisors (23077368907).

212122110101 is a wasteful number, since it uses less digits than its factorization.

212122110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316128403.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212122110101 its reverse (101011221212), we get a palindrome (313133331313).

Subtracting from 212122110101 its reverse (101011221212), we obtain a square (111110888889 = 333333²).

It can be divided in two parts, 212122 and 110101, that added together give a palindrome (322223).

The spelling of 212122110101 in words is "two hundred twelve billion, one hundred twenty-two million, one hundred ten thousand, one hundred one".