212000100221 has 8 divisors (see below), whose sum is σ = 260923200384. Its totient is φ = 167736342960.

The previous prime is 212000100211. The next prime is 212000100229. The reversal of 212000100221 is 122001000212.

It is a happy number.

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 212000100221 - 2³⁰ = 210926358397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212000100229) 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, 1164835625 + ... + 1164835806.

It is an arithmetic number, because the mean of its divisors is an integer number (32615400048).

Almost surely, 2^212000100221 is an apocalyptic number.

It is an amenable number.

212000100221 is a deficient number, since it is larger than the sum of its proper divisors (48923100163).

212000100221 is a wasteful number, since it uses less digits than its factorization.

212000100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329671451.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 212000100221 its reverse (122001000212), we get a palindrome (334001100433).

The spelling of 212000100221 in words is "two hundred twelve billion, one hundred thousand, two hundred twenty-one".