4030021212 has 48 divisors (see below), whose sum is σ = 10794964992. Its totient is φ = 1146265920.

The previous prime is 4030021211. The next prime is 4030021213. The reversal of 4030021212 is 2121200304.

It is an interprime number because it is at equal distance from previous prime (4030021211) and next prime (4030021213).

It is a junction number, because it is equal to n+sod(n) for n = 4030021191 and 4030021200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030021211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88839 + ... + 126302.

It is an arithmetic number, because the mean of its divisors is an integer number (224895104).

Almost surely, 2^4030021212 is an apocalyptic number.

4030021212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4030021212 is an abundant number, since it is smaller than the sum of its proper divisors (6764943780).

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

4030021212 is a wasteful number, since it uses less digits than its factorization.

4030021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215378 (or 215376 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 4030021212 is about 63482.4480624369. The cubic root of 4030021212 is about 1591.3624665227.

Adding to 4030021212 its reverse (2121200304), we get a palindrome (6151221516).

The spelling of 4030021212 in words is "four billion, thirty million, twenty-one thousand, two hundred twelve".