1212402052 has 12 divisors (see below), whose sum is σ = 2123435776. Its totient is φ = 605706120.

The previous prime is 1212402047. The next prime is 1212402091. The reversal of 1212402052 is 2502042121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118188 + ... + 128035.

Almost surely, 2^1212402052 is an apocalyptic number.

It is an amenable number.

1212402052 is a deficient number, since it is larger than the sum of its proper divisors (911033724).

1212402052 is a wasteful number, since it uses less digits than its factorization.

1212402052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247458 (or 247456 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 1212402052 is about 34819.5642132408. The cubic root of 1212402052 is about 1066.3069034564.

Adding to 1212402052 its reverse (2502042121), we get a palindrome (3714444173).

The spelling of 1212402052 in words is "one billion, two hundred twelve million, four hundred two thousand, fifty-two".