1217013471050 has 24 divisors (see below), whose sum is σ = 2437771600236. Its totient is φ = 449358819840.

The previous prime is 1217013470999. The next prime is 1217013471059. The reversal of 1217013471050 is 501743107121.

It can be written as a sum of positive squares in 6 ways, for example, as 110841719041 + 1106171752009 = 332929^2 + 1051747^2 .

It is a super-2 number, since 2×1217013471050² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1217013470998 and 1217013471016.

It is not an unprimeable number, because it can be changed into a prime (1217013471059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 936163559 + ... + 936164858.

Almost surely, 2^{1217013471050} is an apocalyptic number.

1217013471050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1217013471050 is an abundant number, since it is smaller than the sum of its proper divisors (1220758129186).

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

1217013471050 is a wasteful number, since it uses less digits than its factorization.

1217013471050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872328442 (or 1872328437 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 32.

Adding to 1217013471050 its reverse (501743107121), we get a palindrome (1718756578171).

The spelling of 1217013471050 in words is "one trillion, two hundred seventeen billion, thirteen million, four hundred seventy-one thousand, fifty".