1212012412 has 24 divisors (see below), whose sum is σ = 2290988336. Its totient is φ = 557722368.

The previous prime is 1212012409. The next prime is 1212012419. The reversal of 1212012412 is 2142102121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212012419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17058 + ... + 52105.

Almost surely, 2^1212012412 is an apocalyptic number.

It is an amenable number.

1212012412 is a deficient number, since it is larger than the sum of its proper divisors (1078975924).

1212012412 is a wasteful number, since it uses less digits than its factorization.

1212012412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69517 (or 69515 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1212012412 is about 34813.9686332943. The cubic root of 1212012412 is about 1066.1926618324.

Adding to 1212012412 its reverse (2142102121), we get a palindrome (3354114533).

The spelling of 1212012412 in words is "one billion, two hundred twelve million, twelve thousand, four hundred twelve".