221400432424030 has 48 divisors (see below), whose sum is σ = 407175042098160. Its totient is φ = 86676778715904.

The previous prime is 221400432424027. The next prime is 221400432424069. The reversal of 221400432424030 is 30424234004122.

It is a junction number, because it is equal to n+sod(n) for n = 221400432423983 and 221400432424001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1853329 + ... + 21124291.

It is an arithmetic number, because the mean of its divisors is an integer number (8482813377045).

Almost surely, 2^{221400432424030} is an apocalyptic number.

221400432424030 is a deficient number, since it is larger than the sum of its proper divisors (185774609674130).

221400432424030 is a wasteful number, since it uses less digits than its factorization.

221400432424030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19271485 (or 19271432 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 221400432424030 its reverse (30424234004122), we get a palindrome (251824666428152).

The spelling of 221400432424030 in words is "two hundred twenty-one trillion, four hundred billion, four hundred thirty-two million, four hundred twenty-four thousand, thirty".