1213212037 has 2 divisors, whose sum is σ = 1213212038. Its totient is φ = 1213212036.

The previous prime is 1213212031. The next prime is 1213212041. The reversal of 1213212037 is 7302123121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1199860321 + 13351716 = 34639^2 + 3654^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213212037 - 2¹⁵ = 1213179269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213211999 and 1213212017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213212031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606606018 + 606606019.

It is an arithmetic number, because the mean of its divisors is an integer number (606606019).

Almost surely, 2^1213212037 is an apocalyptic number.

It is an amenable number.

1213212037 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213212037 is an equidigital number, since it uses as much as digits as its factorization.

1213212037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1213212037 is about 34831.1934478278. The cubic root of 1213212037 is about 1066.5443110413.

Adding to 1213212037 its reverse (7302123121), we get a palindrome (8515335158).

The spelling of 1213212037 in words is "one billion, two hundred thirteen million, two hundred twelve thousand, thirty-seven".