215142241512 has 128 divisors (see below), whose sum is σ = 612490262400. Its totient is φ = 62392550400.

The previous prime is 215142241499. The next prime is 215142241519.

215142241512 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×215142241512² (a number of 23 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 215142241512.

It is not an unprimeable number, because it can be changed into a prime (215142241519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415314 + ... + 776382.

It is an arithmetic number, because the mean of its divisors is an integer number (4785080175).

Almost surely, 2^215142241512 is an apocalyptic number.

215142241512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215142241512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306245131200).

215142241512 is an abundant number, since it is smaller than the sum of its proper divisors (397348020888).

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

215142241512 is a wasteful number, since it uses less digits than its factorization.

215142241512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361187 (or 361183 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

It can be divided in two parts, 215142 and 241512, that added together give a palindrome (456654).

The spelling of 215142241512 in words is "two hundred fifteen billion, one hundred forty-two million, two hundred forty-one thousand, five hundred twelve".