1212473351280 has 120 divisors (see below), whose sum is σ = 3992771468592. Its totient is φ = 304307019776.

The previous prime is 1212473351269. The next prime is 1212473351291. The reversal of 1212473351280 is 821533742121.

It is an interprime number because it is at equal distance from previous prime (1212473351269) and next prime (1212473351291).

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

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 8671077 + ... + 8809796.

Almost surely, 2^{1212473351280} is an apocalyptic number.

1212473351280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212473351280 is an abundant number, since it is smaller than the sum of its proper divisors (2780298117312).

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

1212473351280 is a wasteful number, since it uses less digits than its factorization.

1212473351280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17480923 (or 17480900 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 1212473351280 in words is "one trillion, two hundred twelve billion, four hundred seventy-three million, three hundred fifty-one thousand, two hundred eighty".