1229753346912 has 192 divisors, whose sum is σ = 3625168780800. Its totient is φ = 405537062400.

The previous prime is 1229753346901. The next prime is 1229753346917. The reversal of 1229753346912 is 2196433579221.

It is a happy number.

1229753346912 is a `hidden beast` number, since 1 + 2 + 2 + 97 + 533 + 4 + 6 + 9 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229753346917) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126266139 + ... + 126275877.

It is an arithmetic number, because the mean of its divisors is an integer number (18881087400).

Almost surely, 2^{1229753346912} is an apocalyptic number.

1229753346912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1229753346912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1812584390400).

1229753346912 is an abundant number, since it is smaller than the sum of its proper divisors (2395415433888).

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

1229753346912 is a wasteful number, since it uses less digits than its factorization.

1229753346912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11306 (or 11292 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The spelling of 1229753346912 in words is "one trillion, two hundred twenty-nine billion, seven hundred fifty-three million, three hundred forty-six thousand, nine hundred twelve".