212110201432221 has 16 divisors (see below), whose sum is σ = 283276387123200. Its totient is φ = 141175504798448.

The previous prime is 212110201432201. The next prime is 212110201432231. The reversal of 212110201432221 is 122234102011212.

It is a cyclic number.

It is not a de Polignac number, because 212110201432221 - 2¹⁰ = 212110201431197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212110201432191 and 212110201432200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110201432201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3255501 + ... + 20852306.

It is an arithmetic number, because the mean of its divisors is an integer number (17704774195200).

Almost surely, 2^{212110201432221} is an apocalyptic number.

It is an amenable number.

212110201432221 is a deficient number, since it is larger than the sum of its proper divisors (71166185690979).

212110201432221 is a wasteful number, since it uses less digits than its factorization.

212110201432221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24112608.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 212110201432221 its reverse (122234102011212), we get a palindrome (334344303443433).

The spelling of 212110201432221 in words is "two hundred twelve trillion, one hundred ten billion, two hundred one million, four hundred thirty-two thousand, two hundred twenty-one".