1015120211216 has 10 divisors (see below), whose sum is σ = 1966795409262. Its totient is φ = 507560105600.

The previous prime is 1015120211207. The next prime is 1015120211309. The reversal of 1015120211216 is 6121120215101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 771242265616 + 243877945600 = 878204^2 + 493840^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1015120211191 and 1015120211200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31722506585 + ... + 31722506616.

Almost surely, 2^{1015120211216} is an apocalyptic number.

1015120211216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1015120211216 is a deficient number, since it is larger than the sum of its proper divisors (951675198046).

1015120211216 is an equidigital number, since it uses as much as digits as its factorization.

1015120211216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63445013209 (or 63445013203 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 23.

Adding to 1015120211216 its reverse (6121120215101), we get a palindrome (7136240426317).

The spelling of 1015120211216 in words is "one trillion, fifteen billion, one hundred twenty million, two hundred eleven thousand, two hundred sixteen".