221400003134432 has 12 divisors (see below), whose sum is σ = 435881256170976. Its totient is φ = 110700001567200.

The previous prime is 221400003134383. The next prime is 221400003134449. The reversal of 221400003134432 is 234431300004122.

It is a super-2 number, since 2×221400003134432² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221400003134395 and 221400003134404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3459375048944 + ... + 3459375049007.

It is an arithmetic number, because the mean of its divisors is an integer number (36323438014248).

Almost surely, 2^{221400003134432} is an apocalyptic number.

It is an amenable number.

221400003134432 is a deficient number, since it is larger than the sum of its proper divisors (214481253036544).

221400003134432 is an equidigital number, since it uses as much as digits as its factorization.

221400003134432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918750097961 (or 6918750097953 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 221400003134432 its reverse (234431300004122), we get a palindrome (455831303138554).

The spelling of 221400003134432 in words is "two hundred twenty-one trillion, four hundred billion, three million, one hundred thirty-four thousand, four hundred thirty-two".