1228134491132 has 24 divisors (see below), whose sum is σ = 2273075091840. Its totient is φ = 578990810160.

The previous prime is 1228134491131. The next prime is 1228134491141. The reversal of 1228134491132 is 2311944318221.

It is a self number, because there is not a number n which added to its sum of digits gives 1228134491132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228134491131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38277008 + ... + 38309079.

It is an arithmetic number, because the mean of its divisors is an integer number (94711462160).

Almost surely, 2^{1228134491132} is an apocalyptic number.

It is an amenable number.

1228134491132 is a deficient number, since it is larger than the sum of its proper divisors (1044940600708).

1228134491132 is a wasteful number, since it uses less digits than its factorization.

1228134491132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76586321 (or 76586319 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The spelling of 1228134491132 in words is "one trillion, two hundred twenty-eight billion, one hundred thirty-four million, four hundred ninety-one thousand, one hundred thirty-two".