1515512240212 has 96 divisors (see below), whose sum is σ = 2912405569920. Its totient is φ = 687118049280.

The previous prime is 1515512240171. The next prime is 1515512240219. The reversal of 1515512240212 is 2120422155151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1515512240219) 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, 108530743 + ... + 108544705.

It is an arithmetic number, because the mean of its divisors is an integer number (30337558020).

Almost surely, 2^{1515512240212} is an apocalyptic number.

It is an amenable number.

1515512240212 is a deficient number, since it is larger than the sum of its proper divisors (1396893329708).

1515512240212 is a wasteful number, since it uses less digits than its factorization.

1515512240212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14441 (or 14439 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 1515512240212 its reverse (2120422155151), we get a palindrome (3635934395363).

The spelling of 1515512240212 in words is "one trillion, five hundred fifteen billion, five hundred twelve million, two hundred forty thousand, two hundred twelve".