221412435743627 has 16 divisors (see below), whose sum is σ = 222072614184960. Its totient is φ = 220752921007872.

The previous prime is 221412435743617. The next prime is 221412435743647. The reversal of 221412435743627 is 726347534214122.

It is a cyclic number.

It is not a de Polignac number, because 221412435743627 - 2¹⁴ = 221412435727243 is a prime.

It is a super-2 number, since 2×221412435743627² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221412435743617) 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, 6341816123 + ... + 6341851035.

It is an arithmetic number, because the mean of its divisors is an integer number (13879538386560).

Almost surely, 2^{221412435743627} is an apocalyptic number.

221412435743627 is a deficient number, since it is larger than the sum of its proper divisors (660178441333).

221412435743627 is a wasteful number, since it uses less digits than its factorization.

221412435743627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43882.

The product of its digits is 13547520, while the sum is 53.

Adding to 221412435743627 its reverse (726347534214122), we get a palindrome (947759969957749).

The spelling of 221412435743627 in words is "two hundred twenty-one trillion, four hundred twelve billion, four hundred thirty-five million, seven hundred forty-three thousand, six hundred twenty-seven".