1272471217108 has 48 divisors (see below), whose sum is σ = 2740802546944. Its totient is φ = 503377701120.

The previous prime is 1272471217093. The next prime is 1272471217123. The reversal of 1272471217108 is 8017121742721.

It is an interprime number because it is at equal distance from previous prime (1272471217093) and next prime (1272471217123).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16954441 + ... + 17029327.

Almost surely, 2^{1272471217108} is an apocalyptic number.

It is an amenable number.

1272471217108 is an abundant number, since it is smaller than the sum of its proper divisors (1468331329836).

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

1272471217108 is a wasteful number, since it uses less digits than its factorization.

1272471217108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121592 (or 121590 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 43.

Adding to 1272471217108 its reverse (8017121742721), we get a palindrome (9289592959829).

The spelling of 1272471217108 in words is "one trillion, two hundred seventy-two billion, four hundred seventy-one million, two hundred seventeen thousand, one hundred eight".