4000420041212 has 24 divisors (see below), whose sum is σ = 8000917622880. Its totient is φ = 1714449116160.

The previous prime is 4000420041209. The next prime is 4000420041251. The reversal of 4000420041212 is 2121400240004.

It is a super-2 number, since 2×4000420041212² (a number of 26 digits) contains 22 as substring.

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, 2507912 + ... + 3780272.

It is an arithmetic number, because the mean of its divisors is an integer number (333371567620).

Almost surely, 2^{4000420041212} is an apocalyptic number.

It is an amenable number.

4000420041212 is an abundant number, since it is smaller than the sum of its proper divisors (4000497581668).

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

4000420041212 is a wasteful number, since it uses less digits than its factorization.

4000420041212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1384661 (or 1384659 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 4000420041212 its reverse (2121400240004), we get a palindrome (6121820281216).

The spelling of 4000420041212 in words is "four trillion, four hundred twenty million, forty-one thousand, two hundred twelve".