221443021041 has 32 divisors (see below), whose sum is σ = 325265466240. Its totient is φ = 132890112000.

The previous prime is 221443021027. The next prime is 221443021061. The reversal of 221443021041 is 140120344122.

It is not a de Polignac number, because 221443021041 - 2⁶ = 221443020977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221443021021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5739571 + ... + 5778023.

It is an arithmetic number, because the mean of its divisors is an integer number (10164545820).

Almost surely, 2^221443021041 is an apocalyptic number.

It is an amenable number.

221443021041 is a deficient number, since it is larger than the sum of its proper divisors (103822445199).

221443021041 is a wasteful number, since it uses less digits than its factorization.

221443021041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40177.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 221443021041 its reverse (140120344122), we get a palindrome (361563365163).

The spelling of 221443021041 in words is "two hundred twenty-one billion, four hundred forty-three million, twenty-one thousand, forty-one".