1228801442872 has 32 divisors (see below), whose sum is σ = 2451915742320. Its totient is φ = 575324162560.

The previous prime is 1228801442867. The next prime is 1228801442873. The reversal of 1228801442872 is 2782441088221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228801442873) 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, 22905454 + ... + 22959037.

Almost surely, 2^{1228801442872} is an apocalyptic number.

It is an amenable number.

1228801442872 is a deficient number, since it is larger than the sum of its proper divisors (1223114299448).

1228801442872 is a wasteful number, since it uses less digits than its factorization.

1228801442872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45864711 (or 45864707 counting only the distinct ones).

The product of its (nonzero) digits is 917504, while the sum is 49.

The spelling of 1228801442872 in words is "one trillion, two hundred twenty-eight billion, eight hundred one million, four hundred forty-two thousand, eight hundred seventy-two".