421204012 has 6 divisors (see below), whose sum is σ = 737107028. Its totient is φ = 210602004.

The previous prime is 421203983. The next prime is 421204031. The reversal of 421204012 is 210402124.

It is a super-2 number, since 2×421204012² = 354825639449792288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52650498 + ... + 52650505.

Almost surely, 2^421204012 is an apocalyptic number.

It is an amenable number.

421204012 is a deficient number, since it is larger than the sum of its proper divisors (315903016).

421204012 is a wasteful number, since it uses less digits than its factorization.

421204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105301007 (or 105301005 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 421204012 is about 20523.2553947954. The cubic root of 421204012 is about 749.6021664901.

Adding to 421204012 its reverse (210402124), we get a palindrome (631606136).

The spelling of 421204012 in words is "four hundred twenty-one million, two hundred four thousand, twelve".