1212313212102 has 64 divisors (see below), whose sum is σ = 2492519040000. Its totient is φ = 392877666048.

The previous prime is 1212313212101. The next prime is 1212313212109. The reversal of 1212313212102 is 2012123132121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212313212101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 260766274 + ... + 260770922.

It is an arithmetic number, because the mean of its divisors is an integer number (38945610000).

Almost surely, 2^{1212313212102} is an apocalyptic number.

1212313212102 is an abundant number, since it is smaller than the sum of its proper divisors (1280205827898).

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

1212313212102 is a wasteful number, since it uses less digits than its factorization.

1212313212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9165.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1212313212102 its reverse (2012123132121), we get a palindrome (3224436344223).

It can be divided in two parts, 121231 and 3212102, that added together give a palindrome (3333333).

The spelling of 1212313212102 in words is "one trillion, two hundred twelve billion, three hundred thirteen million, two hundred twelve thousand, one hundred two".