221401413430 has 32 divisors (see below), whose sum is σ = 437736441600. Its totient is φ = 80251677792.

The previous prime is 221401413419. The next prime is 221401413433. The reversal of 221401413430 is 34314104122.

It is a junction number, because it is equal to n+sod(n) for n = 221401413395 and 221401413404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221401413433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25327600 + ... + 25336339.

It is an arithmetic number, because the mean of its divisors is an integer number (13679263800).

Almost surely, 2^221401413430 is an apocalyptic number.

221401413430 is a deficient number, since it is larger than the sum of its proper divisors (216335028170).

221401413430 is a wasteful number, since it uses less digits than its factorization.

221401413430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50663988.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 221401413430 its reverse (34314104122), we get a palindrome (255715517552).

The spelling of 221401413430 in words is "two hundred twenty-one billion, four hundred one million, four hundred thirteen thousand, four hundred thirty".