4020111012 has 48 divisors (see below), whose sum is σ = 9540865152. Its totient is φ = 1317285120.

The previous prime is 4020111001. The next prime is 4020111047. The reversal of 4020111012 is 2101110204.

It is a happy number.

It is a super-2 number, since 2×4020111012² = 32322585097607328288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

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, 157462 + ... + 181202.

It is an arithmetic number, because the mean of its divisors is an integer number (198768024).

Almost surely, 2^4020111012 is an apocalyptic number.

It is an amenable number.

4020111012 is an abundant number, since it is smaller than the sum of its proper divisors (5520754140).

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

4020111012 is a wasteful number, since it uses less digits than its factorization.

4020111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23988 (or 23986 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 4020111012 is about 63404.3453715911. The cubic root of 4020111012 is about 1590.0569593139.

Adding to 4020111012 its reverse (2101110204), we get a palindrome (6121221216).

The spelling of 4020111012 in words is "four billion, twenty million, one hundred eleven thousand, twelve".