214211241221 has 16 divisors (see below), whose sum is σ = 226410024960. Its totient is φ = 202254177840.

The previous prime is 214211241197. The next prime is 214211241241. The reversal of 214211241221 is 122142112412.

It is a cyclic number.

It is not a de Polignac number, because 214211241221 - 2³⁰ = 213137499397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214211241241) 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, 8838506 + ... + 8862708.

It is an arithmetic number, because the mean of its divisors is an integer number (14150626560).

Almost surely, 2^214211241221 is an apocalyptic number.

It is an amenable number.

214211241221 is a deficient number, since it is larger than the sum of its proper divisors (12198783739).

214211241221 is a wasteful number, since it uses less digits than its factorization.

214211241221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29176.

The product of its digits is 512, while the sum is 23.

Adding to 214211241221 its reverse (122142112412), we get a palindrome (336353353633).

The spelling of 214211241221 in words is "two hundred fourteen billion, two hundred eleven million, two hundred forty-one thousand, two hundred twenty-one".