1213201002 has 16 divisors (see below), whose sum is σ = 2613048480. Its totient is φ = 373292592.

The previous prime is 1213200997. The next prime is 1213201007. The reversal of 1213201002 is 2001023121.

It is an interprime number because it is at equal distance from previous prime (1213200997) and next prime (1213201007).

It is not an unprimeable number, because it can be changed into a prime (1213201007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7776852 + ... + 7777007.

It is an arithmetic number, because the mean of its divisors is an integer number (163315530).

Almost surely, 2^1213201002 is an apocalyptic number.

1213201002 is an abundant number, since it is smaller than the sum of its proper divisors (1399847478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213201002 is a wasteful number, since it uses less digits than its factorization.

1213201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15553877.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1213201002 is about 34831.0350406071. The cubic root of 1213201002 is about 1066.5410773795.

Adding to 1213201002 its reverse (2001023121), we get a palindrome (3214224123).

The spelling of 1213201002 in words is "one billion, two hundred thirteen million, two hundred one thousand, two".