1125545522212 has 12 divisors (see below), whose sum is σ = 1979910388876. Its totient is φ = 559856839680.

The previous prime is 1125545522183. The next prime is 1125545522221. The reversal of 1125545522212 is 2122255455211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 537661428516 + 587884093696 = 733254^2 + 766736^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728979489 + ... + 728981032.

Almost surely, 2^{1125545522212} is an apocalyptic number.

It is an amenable number.

1125545522212 is a deficient number, since it is larger than the sum of its proper divisors (854364866664).

1125545522212 is a wasteful number, since it uses less digits than its factorization.

1125545522212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457960718 (or 1457960716 counting only the distinct ones).

The product of its digits is 80000, while the sum is 37.

The spelling of 1125545522212 in words is "one trillion, one hundred twenty-five billion, five hundred forty-five million, five hundred twenty-two thousand, two hundred twelve".