4021201212 has 24 divisors (see below), whose sum is σ = 10723203456. Its totient is φ = 1148914608.

The previous prime is 4021201207. The next prime is 4021201259. The reversal of 4021201212 is 2121021204.

It is a junction number, because it is equal to n+sod(n) for n = 4021201191 and 4021201200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23935638 + ... + 23935805.

It is an arithmetic number, because the mean of its divisors is an integer number (446800144).

Almost surely, 2^4021201212 is an apocalyptic number.

4021201212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4021201212 is an abundant number, since it is smaller than the sum of its proper divisors (6702002244).

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

4021201212 is a wasteful number, since it uses less digits than its factorization.

4021201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47871457 (or 47871455 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 4021201212 is about 63412.9419913632. The cubic root of 4021201212 is about 1590.2006803385.

Adding to 4021201212 its reverse (2121021204), we get a palindrome (6142222416).

The spelling of 4021201212 in words is "four billion, twenty-one million, two hundred one thousand, two hundred twelve".