221310400434010 has 32 divisors (see below), whose sum is σ = 403822286315280. Its totient is φ = 87318265861632.

The previous prime is 221310400434007. The next prime is 221310400434029. The reversal of 221310400434010 is 10434004013122.

It can be written as a sum of positive squares in 8 ways, for example, as 136133799834321 + 85176600599689 = 11667639^2 + 9229117^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514244905 + ... + 514675084.

Almost surely, 2^{221310400434010} is an apocalyptic number.

221310400434010 is a deficient number, since it is larger than the sum of its proper divisors (182511885881270).

221310400434010 is a wasteful number, since it uses less digits than its factorization.

221310400434010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028920290.

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

Adding to 221310400434010 its reverse (10434004013122), we get a palindrome (231744404447132).

The spelling of 221310400434010 in words is "two hundred twenty-one trillion, three hundred ten billion, four hundred million, four hundred thirty-four thousand, ten".