221441011401 has 4 divisors (see below), whose sum is σ = 295254681872. Its totient is φ = 147627340932.

The previous prime is 221441011369. The next prime is 221441011469. The reversal of 221441011401 is 104110144122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 221441011401 - 2⁵ = 221441011369 is a prime.

It is a super-2 number, since 2×221441011401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221441011471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36906835231 + ... + 36906835236.

It is an arithmetic number, because the mean of its divisors is an integer number (73813670468).

Almost surely, 2^221441011401 is an apocalyptic number.

It is an amenable number.

221441011401 is a deficient number, since it is larger than the sum of its proper divisors (73813670471).

221441011401 is an equidigital number, since it uses as much as digits as its factorization.

221441011401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73813670470.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 221441011401 its reverse (104110144122), we get a palindrome (325551155523).

The spelling of 221441011401 in words is "two hundred twenty-one billion, four hundred forty-one million, eleven thousand, four hundred one".