1212668072 has 192 divisors, whose sum is σ = 3111488640. Its totient is φ = 436531200.

The previous prime is 1212668063. The next prime is 1212668099. The reversal of 1212668072 is 2708662121.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5204468 + ... + 5204700.

It is an arithmetic number, because the mean of its divisors is an integer number (16205670).

Almost surely, 2^1212668072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212668072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555744320).

1212668072 is an abundant number, since it is smaller than the sum of its proper divisors (1898820568).

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

1212668072 is a wasteful number, since it uses less digits than its factorization.

1212668072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 1212668072 is about 34823.3839826057. The cubic root of 1212668072 is about 1066.3848858985.

The spelling of 1212668072 in words is "one billion, two hundred twelve million, six hundred sixty-eight thousand, seventy-two".