221200011401 has 2 divisors, whose sum is σ = 221200011402. Its totient is φ = 221200011400.

The previous prime is 221200011379. The next prime is 221200011421. The reversal of 221200011401 is 104110002122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167691069001 + 53508942400 = 409501^2 + 231320^2 .

It is a cyclic number.

It is not a de Polignac number, because 221200011401 - 2³⁰ = 220126269577 is a prime.

It is not a weakly prime, because it can be changed into another prime (221200011421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600005700 + 110600005701.

It is an arithmetic number, because the mean of its divisors is an integer number (110600005701).

Almost surely, 2^221200011401 is an apocalyptic number.

It is an amenable number.

221200011401 is a deficient number, since it is larger than the sum of its proper divisors (1).

221200011401 is an equidigital number, since it uses as much as digits as its factorization.

221200011401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221200011401 its reverse (104110002122), we get a palindrome (325310013523).

The spelling of 221200011401 in words is "two hundred twenty-one billion, two hundred million, eleven thousand, four hundred one".