1225515133611 has 16 divisors (see below), whose sum is σ = 1819368345600. Its totient is φ = 815304422664.

The previous prime is 1225515133603. The next prime is 1225515133613. The reversal of 1225515133611 is 1163315155221.

1225515133611 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 5 + 1 + 5 + 1 + 33 + 611 = 666.

It is not a de Polignac number, because 1225515133611 - 2³ = 1225515133603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225515133613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47366451 + ... + 47392316.

It is an arithmetic number, because the mean of its divisors is an integer number (113710521600).

Almost surely, 2^{1225515133611} is an apocalyptic number.

1225515133611 is a deficient number, since it is larger than the sum of its proper divisors (593853211989).

1225515133611 is an equidigital number, since it uses as much as digits as its factorization.

1225515133611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94759255 (or 94759249 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The spelling of 1225515133611 in words is "one trillion, two hundred twenty-five billion, five hundred fifteen million, one hundred thirty-three thousand, six hundred eleven".