1212488969 has 2 divisors, whose sum is σ = 1212488970. Its totient is φ = 1212488968.

The previous prime is 1212488951. The next prime is 1212488987. The reversal of 1212488969 is 9698842121.

It is a balanced prime because it is at equal distance from previous prime (1212488951) and next prime (1212488987).

It can be written as a sum of positive squares in only one way, i.e., 897781369 + 314707600 = 29963^2 + 17740^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212488969 - 2¹² = 1212484873 is a prime.

It is a super-2 number, since 2×1212488969² = 2940258999893365922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212488929) by changing a digit.

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 as a sum of consecutive naturals, namely, 606244484 + 606244485.

It is an arithmetic number, because the mean of its divisors is an integer number (606244485).

Almost surely, 2^1212488969 is an apocalyptic number.

It is an amenable number.

1212488969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212488969 is an equidigital number, since it uses as much as digits as its factorization.

1212488969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 50.

The square root of 1212488969 is about 34820.8122966711. The cubic root of 1212488969 is about 1066.3323839979.

The spelling of 1212488969 in words is "one billion, two hundred twelve million, four hundred eighty-eight thousand, nine hundred sixty-nine".