212221102101 has 8 divisors (see below), whose sum is σ = 284383387200. Its totient is φ = 140769775872.

The previous prime is 212221102099. The next prime is 212221102123. The reversal of 212221102101 is 101201122212.

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

It is not a de Polignac number, because 212221102101 - 2¹ = 212221102099 is a prime.

It is a super-2 number, since 2×212221102101² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221102601) 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, 177739020 + ... + 177740213.

It is an arithmetic number, because the mean of its divisors is an integer number (35547923400).

Almost surely, 2^212221102101 is an apocalyptic number.

It is an amenable number.

212221102101 is a deficient number, since it is larger than the sum of its proper divisors (72162285099).

212221102101 is a wasteful number, since it uses less digits than its factorization.

212221102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355479435.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212221102101 its reverse (101201122212), we get a palindrome (313422224313).

The spelling of 212221102101 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred two thousand, one hundred one".