1214411252221 has 16 divisors (see below), whose sum is σ = 1354780387584. Its totient is φ = 1082666306304.

The previous prime is 1214411252203. The next prime is 1214411252237. The reversal of 1214411252221 is 1222521144121.

It is a happy number.

It is not a de Polignac number, because 1214411252221 - 2¹⁵ = 1214411219453 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214411252221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214411252921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15036966 + ... + 15117511.

It is an arithmetic number, because the mean of its divisors is an integer number (84673774224).

Almost surely, 2^{1214411252221} is an apocalyptic number.

It is an amenable number.

1214411252221 is a deficient number, since it is larger than the sum of its proper divisors (140369135363).

1214411252221 is a wasteful number, since it uses less digits than its factorization.

1214411252221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30154620.

The product of its digits is 2560, while the sum is 28.

Adding to 1214411252221 its reverse (1222521144121), we get a palindrome (2436932396342).

The spelling of 1214411252221 in words is "one trillion, two hundred fourteen billion, four hundred eleven million, two hundred fifty-two thousand, two hundred twenty-one".