3842020221836 has 12 divisors (see below), whose sum is σ = 6732078640728. Its totient is φ = 1918569181632.

The previous prime is 3842020221821. The next prime is 3842020221863. The reversal of 3842020221836 is 6381220202483.

It is a super-2 number, since 2×3842020221836² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3842020221793 and 3842020221802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610228781 + ... + 610235076.

It is an arithmetic number, because the mean of its divisors is an integer number (561006553394).

Almost surely, 2^{3842020221836} is an apocalyptic number.

It is an amenable number.

3842020221836 is a deficient number, since it is larger than the sum of its proper divisors (2890058418892).

3842020221836 is a wasteful number, since it uses less digits than its factorization.

3842020221836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220464648 (or 1220464646 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 3842020221836 in words is "three trillion, eight hundred forty-two billion, twenty million, two hundred twenty-one thousand, eight hundred thirty-six".