1223378295120 has 120 divisors (see below), whose sum is σ = 4116369038496. Its totient is φ = 325610337024.

The previous prime is 1223378295109. The next prime is 1223378295121. The reversal of 1223378295120 is 215928733221.

1223378295120 is a `hidden beast` number, since 1 + 2 + 2 + 337 + 8 + 295 + 1 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223378295121) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1247854 + ... + 2000973.

Almost surely, 2^{1223378295120} is an apocalyptic number.

1223378295120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223378295120 is an abundant number, since it is smaller than the sum of its proper divisors (2892990743376).

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

1223378295120 is a wasteful number, since it uses less digits than its factorization.

1223378295120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249369 (or 3249360 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 1223378295120 in words is "one trillion, two hundred twenty-three billion, three hundred seventy-eight million, two hundred ninety-five thousand, one hundred twenty".