1213212102 has 8 divisors (see below), whose sum is σ = 2426424216. Its totient is φ = 404404032.

The previous prime is 1213212083. The next prime is 1213212107. The reversal of 1213212102 is 2012123121.

It is a sphenic number, since it is the product of 3 distinct primes.

1213212102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213212107) 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 3 ways as a sum of consecutive naturals, for example, 101101003 + ... + 101101014.

It is an arithmetic number, because the mean of its divisors is an integer number (303303027).

Almost surely, 2^1213212102 is an apocalyptic number.

1213212102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1213212102 is a wasteful number, since it uses less digits than its factorization.

1213212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202202022.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1213212102 is about 34831.1943808994. The cubic root of 1213212102 is about 1066.5443300886.

Adding to 1213212102 its reverse (2012123121), we get a palindrome (3225335223).

The spelling of 1213212102 in words is "one billion, two hundred thirteen million, two hundred twelve thousand, one hundred two".