421321220350 has 24 divisors (see below), whose sum is σ = 786549220128. Its totient is φ = 167906606400.

The previous prime is 421321220303. The next prime is 421321220381. The reversal of 421321220350 is 53022123124.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15533359 + ... + 15560458.

It is an arithmetic number, because the mean of its divisors is an integer number (32772884172).

Almost surely, 2^421321220350 is an apocalyptic number.

421321220350 is a deficient number, since it is larger than the sum of its proper divisors (365227999778).

421321220350 is a wasteful number, since it uses less digits than its factorization.

421321220350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31094100 (or 31094095 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 421321220350 its reverse (53022123124), we get a palindrome (474343343474).

The spelling of 421321220350 in words is "four hundred twenty-one billion, three hundred twenty-one million, two hundred twenty thousand, three hundred fifty".