221401314004 has 12 divisors (see below), whose sum is σ = 417256322644. Its totient is φ = 102185221824.

The previous prime is 221401313963. The next prime is 221401314007. The reversal of 221401314004 is 400413104122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 88358751504 + 133042562500 = 297252^2 + 364750^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221401314007) 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, 2128858737 + ... + 2128858840.

Almost surely, 2^221401314004 is an apocalyptic number.

It is an amenable number.

221401314004 is a deficient number, since it is larger than the sum of its proper divisors (195855008640).

221401314004 is a wasteful number, since it uses less digits than its factorization.

221401314004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257717594 (or 4257717592 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 221401314004 its reverse (400413104122), we get a palindrome (621814418126).

The spelling of 221401314004 in words is "two hundred twenty-one billion, four hundred one million, three hundred fourteen thousand, four".