1212212102 has 8 divisors (see below), whose sum is σ = 1897375536.
Its totient is φ = 579753592.
The previous prime is 1212212101. The next prime is 1212212119. The reversal of 1212212102 is 2012122121.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-3 number, since 3×12122121023 (a number of 28 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1212212101) 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, 13176173 + ... + 13176264.
It is an arithmetic number, because the mean of its divisors is an integer number (237171942).
Almost surely, 21212212102 is an apocalyptic number.
1212212102 is a deficient number, since it is larger than the sum of its proper divisors (685163434).
1212212102 is a wasteful number, since it uses less digits than its factorization.
1212212102 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26352462.
The product of its (nonzero) digits is 32, while the sum is 14.
The square root of 1212212102 is about 34816.8364731777.
The cubic root of 1212212102 is about 1066.2512135762.
Adding to 1212212102 its reverse (2012122121), we get a palindrome (3224334223).
The spelling of 1212212102 in words is "one billion, two hundred twelve million, two hundred twelve thousand, one hundred two".