421213122242 has 32 divisors (see below), whose sum is σ = 691060507200. Its totient is φ = 190960107520.

The previous prime is 421213122233. The next prime is 421213122247. The reversal of 421213122242 is 242221312124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (421213122247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31632578 + ... + 31645890.

It is an arithmetic number, because the mean of its divisors is an integer number (21595640850).

Almost surely, 2^421213122242 is an apocalyptic number.

421213122242 is a deficient number, since it is larger than the sum of its proper divisors (269847384958).

421213122242 is a wasteful number, since it uses less digits than its factorization.

421213122242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16978.

The product of its digits is 3072, while the sum is 26.

Adding to 421213122242 its reverse (242221312124), we get a palindrome (663434434366).

The spelling of 421213122242 in words is "four hundred twenty-one billion, two hundred thirteen million, one hundred twenty-two thousand, two hundred forty-two".