1212057072 has 30 divisors (see below), whose sum is σ = 3392076792. Its totient is φ = 404018976.

The previous prime is 1212057031. The next prime is 1212057073. The reversal of 1212057072 is 2707502121.

1212057072 is a `hidden beast` number, since 1 + 2 + 1 + 20 + 570 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212057073) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4208388 + ... + 4208675.

Almost surely, 2^1212057072 is an apocalyptic number.

1212057072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212057072 is an abundant number, since it is smaller than the sum of its proper divisors (2180019720).

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

1212057072 is a wasteful number, since it uses less digits than its factorization.

1212057072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417077 (or 8417068 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 1212057072 is about 34814.6100365924. The cubic root of 1212057072 is about 1066.2057572922.

Adding to 1212057072 its reverse (2707502121), we get a palindrome (3919559193).

The spelling of 1212057072 in words is "one billion, two hundred twelve million, fifty-seven thousand, seventy-two".