1213210002 has 32 divisors (see below), whose sum is σ = 2556288000. Its totient is φ = 382794768.

The previous prime is 1213209973. The next prime is 1213210007. The reversal of 1213210002 is 2000123121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213210002.

It is not an unprimeable number, because it can be changed into a prime (1213210007) 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 in 15 ways as a sum of consecutive naturals, for example, 155683 + ... + 163289.

It is an arithmetic number, because the mean of its divisors is an integer number (79884000).

Almost surely, 2^1213210002 is an apocalyptic number.

1213210002 is an abundant number, since it is smaller than the sum of its proper divisors (1343077998).

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

1213210002 is a wasteful number, since it uses less digits than its factorization.

1213210002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9030.

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

The square root of 1213210002 is about 34831.1642354946. The cubic root of 1213210002 is about 1066.5437147127.

Adding to 1213210002 its reverse (2000123121), we get a palindrome (3213333123).

It can be divided in two parts, 121 and 3210002, that added together give a palindrome (3210123).

The spelling of 1213210002 in words is "one billion, two hundred thirteen million, two hundred ten thousand, two".