1210242213 has 24 divisors (see below), whose sum is σ = 1797553368. Its totient is φ = 784069632.

The previous prime is 1210242211. The next prime is 1210242269. The reversal of 1210242213 is 3122420121.

It is a happy number.

1210242213 is a `hidden beast` number, since 1 + 210 + 242 + 213 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 576864324 + 633377889 = 24018^2 + 25167^2 .

It is not a de Polignac number, because 1210242213 - 2¹ = 1210242211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210242211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 363645 + ... + 366957.

It is an arithmetic number, because the mean of its divisors is an integer number (74898057).

Almost surely, 2^1210242213 is an apocalyptic number.

It is an amenable number.

1210242213 is a deficient number, since it is larger than the sum of its proper divisors (587311155).

1210242213 is a wasteful number, since it uses less digits than its factorization.

1210242213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453 (or 4450 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1210242213 is about 34788.5356547240. The cubic root of 1210242213 is about 1065.6733346990.

Adding to 1210242213 its reverse (3122420121), we get a palindrome (4332662334).

The spelling of 1210242213 in words is "one billion, two hundred ten million, two hundred forty-two thousand, two hundred thirteen".