1212102102 has 16 divisors (see below), whose sum is σ = 2426887872. Its totient is φ = 403586760.

The previous prime is 1212102083. The next prime is 1212102109. The reversal of 1212102102 is 2012012121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212102109) 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, 105924 + ... + 116807.

It is an arithmetic number, because the mean of its divisors is an integer number (151680492).

Almost surely, 2^1212102102 is an apocalyptic number.

1212102102 is an abundant number, since it is smaller than the sum of its proper divisors (1214785770).

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

1212102102 is a wasteful number, since it uses less digits than its factorization.

1212102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223643.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1212102102 is about 34815.2567418366. The cubic root of 1212102102 is about 1066.2189609198.

Adding to 1212102102 its reverse (2012012121), we get a palindrome (3224114223).

The spelling of 1212102102 in words is "one billion, two hundred twelve million, one hundred two thousand, one hundred two".