4015121660112 has 40 divisors (see below), whose sum is σ = 10706991097600. Its totient is φ = 1295200535040.

The previous prime is 4015121660111. The next prime is 4015121660113. The reversal of 4015121660112 is 2110661215104.

It is an interprime number because it is at equal distance from previous prime (4015121660111) and next prime (4015121660113).

It is a super-2 number, since 2×4015121660112² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4015121660112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4015121660111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1349165737 + ... + 1349168712.

It is an arithmetic number, because the mean of its divisors is an integer number (267674777440).

Almost surely, 2^{4015121660112} is an apocalyptic number.

It is an amenable number.

4015121660112 is an abundant number, since it is smaller than the sum of its proper divisors (6691869437488).

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

4015121660112 is a wasteful number, since it uses less digits than its factorization.

4015121660112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2698334491 (or 2698334485 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

Adding to 4015121660112 its reverse (2110661215104), we get a palindrome (6125782875216).

The spelling of 4015121660112 in words is "four trillion, fifteen billion, one hundred twenty-one million, six hundred sixty thousand, one hundred twelve".