221240011430 has 16 divisors (see below), whose sum is σ = 398244697200. Its totient is φ = 88493187552.

The previous prime is 221240011417. The next prime is 221240011483. The reversal of 221240011430 is 34110042122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6080 + ... + 665219.

It is an arithmetic number, because the mean of its divisors is an integer number (24890293575).

Almost surely, 2^221240011430 is an apocalyptic number.

221240011430 is a deficient number, since it is larger than the sum of its proper divisors (177004685770).

221240011430 is a wasteful number, since it uses less digits than its factorization.

221240011430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704263.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 221240011430 its reverse (34110042122), we get a palindrome (255350053552).

The spelling of 221240011430 in words is "two hundred twenty-one billion, two hundred forty million, eleven thousand, four hundred thirty".