421241224442 has 16 divisors (see below), whose sum is σ = 639892838400. Its totient is φ = 207943884720.

The previous prime is 421241224381. The next prime is 421241224451. The reversal of 421241224442 is 244422142124.

It is a super-2 number, since 2×421241224442² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421241224399 and 421241224408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3676967 + ... + 3789797.

It is an arithmetic number, because the mean of its divisors is an integer number (39993302400).

Almost surely, 2^421241224442 is an apocalyptic number.

421241224442 is a deficient number, since it is larger than the sum of its proper divisors (218651613958).

421241224442 is a wasteful number, since it uses less digits than its factorization.

421241224442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136541.

The product of its digits is 32768, while the sum is 32.

Adding to 421241224442 its reverse (244422142124), we get a palindrome (665663366566).

The spelling of 421241224442 in words is "four hundred twenty-one billion, two hundred forty-one million, two hundred twenty-four thousand, four hundred forty-two".