1272072264100 has 36 divisors (see below), whose sum is σ = 3011341980528. Its totient is φ = 462571732000.

The previous prime is 1272072264077. The next prime is 1272072264109. The reversal of 1272072264100 is 14622702721.

It is not an unprimeable number, because it can be changed into a prime (1272072264109) 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, 578213566 + ... + 578215765.

It is an arithmetic number, because the mean of its divisors is an integer number (83648388348).

Almost surely, 2^{1272072264100} is an apocalyptic number.

1272072264100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1272072264100 is an abundant number, since it is smaller than the sum of its proper divisors (1739269716428).

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

1272072264100 is a wasteful number, since it uses less digits than its factorization.

1272072264100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156429356 (or 1156429349 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

Adding to 1272072264100 its reverse (14622702721), we get a palindrome (1286694966821).

The spelling of 1272072264100 in words is "one trillion, two hundred seventy-two billion, seventy-two million, two hundred sixty-four thousand, one hundred".