221442211241 has 8 divisors (see below), whose sum is σ = 223669668168. Its totient is φ = 219215440000.

The previous prime is 221442211231. The next prime is 221442211337. The reversal of 221442211241 is 142112244122.

It can be written as a sum of positive squares in 4 ways, for example, as 70415929600 + 151026281641 = 265360^2 + 388621^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221442211241 - 2¹⁸ = 221441949097 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 221442211241.

It is not an unprimeable number, because it can be changed into a prime (221442211231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490511 + ... + 826731.

It is an arithmetic number, because the mean of its divisors is an integer number (27958708521).

Almost surely, 2^221442211241 is an apocalyptic number.

It is an amenable number.

221442211241 is a deficient number, since it is larger than the sum of its proper divisors (2227456927).

221442211241 is a wasteful number, since it uses less digits than its factorization.

221442211241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342843.

The product of its digits is 2048, while the sum is 26.

Adding to 221442211241 its reverse (142112244122), we get a palindrome (363554455363).

The spelling of 221442211241 in words is "two hundred twenty-one billion, four hundred forty-two million, two hundred eleven thousand, two hundred forty-one".