221425024030 has 32 divisors (see below), whose sum is σ = 456053815296. Its totient is φ = 75825333024.

The previous prime is 221425024019. The next prime is 221425024039. The reversal of 221425024030 is 30420524122.

It is a junction number, because it is equal to n+sod(n) for n = 221425023986 and 221425024004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221425024039) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1854574 + ... + 1970353.

It is an arithmetic number, because the mean of its divisors is an integer number (14251681728).

Almost surely, 2^221425024030 is an apocalyptic number.

221425024030 is an abundant number, since it is smaller than the sum of its proper divisors (234628791266).

221425024030 is a wasteful number, since it uses less digits than its factorization.

221425024030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3825768.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 221425024030 its reverse (30420524122), we get a palindrome (251845548152).

The spelling of 221425024030 in words is "two hundred twenty-one billion, four hundred twenty-five million, twenty-four thousand, thirty".