1229100387904 has 21 divisors (see below), whose sum is σ = 2439013682161. Its totient is φ = 614545759360.

The previous prime is 1229100387857. The next prime is 1229100387917. The reversal of 1229100387904 is 4097830019221.

It is a happy number.

The square root of 1229100387904 is 1108648.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1170187389504 + 58912998400 = 1081752^2 + 242720^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 8799894 + ... + 8938474.

Almost surely, 2^{1229100387904} is an apocalyptic number.

1229100387904 is the 1108648-th square number.

It is an amenable number.

1229100387904 is a deficient number, since it is larger than the sum of its proper divisors (1209913294257).

1229100387904 is an frugal number, since it uses more digits than its factorization.

1229100387904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277174 (or 138583 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 1229100387904 in words is "one trillion, two hundred twenty-nine billion, one hundred million, three hundred eighty-seven thousand, nine hundred four".