421011212 has 12 divisors (see below), whose sum is σ = 762175680. Its totient is φ = 203246736.

The previous prime is 421011193. The next prime is 421011229. The reversal of 421011212 is 212110124.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814588 + ... + 1814819.

It is an arithmetic number, because the mean of its divisors is an integer number (63514640).

Almost surely, 2^421011212 is an apocalyptic number.

It is an amenable number.

421011212 is a deficient number, since it is larger than the sum of its proper divisors (341164468).

421011212 is a wasteful number, since it uses less digits than its factorization.

421011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629440 (or 3629438 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 421011212 is about 20518.5577465864. The cubic root of 421011212 is about 749.4877758779.

Adding to 421011212 its reverse (212110124), we get a palindrome (633121336).

It can be divided in two parts, 4210112 and 12, that added together give a palindrome (4210124).

The spelling of 421011212 in words is "four hundred twenty-one million, eleven thousand, two hundred twelve".