4021226012 has 24 divisors (see below), whose sum is σ = 7207203696. Its totient is φ = 1962108288.

The previous prime is 4021226009. The next prime is 4021226051. The reversal of 4021226012 is 2106221204.

It is a happy number.

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, 195398 + ... + 214994.

It is an arithmetic number, because the mean of its divisors is an integer number (300300154).

Almost surely, 2^4021226012 is an apocalyptic number.

It is an amenable number.

4021226012 is a deficient number, since it is larger than the sum of its proper divisors (3185977684).

4021226012 is a wasteful number, since it uses less digits than its factorization.

4021226012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20837 (or 20835 counting only the distinct ones).

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

The square root of 4021226012 is about 63413.1375347412. The cubic root of 4021226012 is about 1590.2039494194.

Adding to 4021226012 its reverse (2106221204), we get a palindrome (6127447216).

The spelling of 4021226012 in words is "four billion, twenty-one million, two hundred twenty-six thousand, twelve".