4031421212 has 24 divisors (see below), whose sum is σ = 8683061856. Its totient is φ = 1594847808.

The previous prime is 4031421211. The next prime is 4031421239. The reversal of 4031421212 is 2121241304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4031421211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5537303 + ... + 5538030.

It is an arithmetic number, because the mean of its divisors is an integer number (361794244).

Almost surely, 2^4031421212 is an apocalyptic number.

It is an amenable number.

4031421212 is an abundant number, since it is smaller than the sum of its proper divisors (4651640644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4031421212 is a wasteful number, since it uses less digits than its factorization.

4031421212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11075357 (or 11075355 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4031421212 is about 63493.4737748692. The cubic root of 4031421212 is about 1591.5467210960.

Adding to 4031421212 its reverse (2121241304), we get a palindrome (6152662516).

The spelling of 4031421212 in words is "four billion, thirty-one million, four hundred twenty-one thousand, two hundred twelve".