1210532213 has 4 divisors (see below), whose sum is σ = 1320580608. Its totient is φ = 1100483820.

The previous prime is 1210532201. The next prime is 1210532227. The reversal of 1210532213 is 3122350121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1210532213 - 2²⁴ = 1193754997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210532233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55024181 + ... + 55024202.

It is an arithmetic number, because the mean of its divisors is an integer number (330145152).

Almost surely, 2^1210532213 is an apocalyptic number.

It is an amenable number.

1210532213 is a deficient number, since it is larger than the sum of its proper divisors (110048395).

1210532213 is a wasteful number, since it uses less digits than its factorization.

1210532213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110048394.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1210532213 is about 34792.7034448316. The cubic root of 1210532213 is about 1065.7584472994.

Adding to 1210532213 its reverse (3122350121), we get a palindrome (4332882334).

The spelling of 1210532213 in words is "one billion, two hundred ten million, five hundred thirty-two thousand, two hundred thirteen".