1212210202011 has 8 divisors (see below), whose sum is σ = 1620435233040.
Its totient is φ = 806062652832.
The previous prime is 1212210202009. The next prime is 1212210202013. The reversal of 1212210202011 is 1102020122121.
It is an interprime number because it is at equal distance from previous prime (1212210202009) and next prime (1212210202013).
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 1212210202011 - 21 = 1212210202009 is a prime.
It is not an unprimeable number, because it can be changed into a prime (1212210202013) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519369100 + ... + 519371433.
It is an arithmetic number, because the mean of its divisors is an integer number (202554404130).
Almost surely, 21212210202011 is an apocalyptic number.
1212210202011 is a deficient number, since it is larger than the sum of its proper divisors (408225031029).
1212210202011 is a wasteful number, since it uses less digits than its factorization.
1212210202011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1038740925.
The product of its (nonzero) digits is 32, while the sum is 15.
Adding to 1212210202011 its reverse (1102020122121), we get a palindrome (2314230324132).
The spelling of 1212210202011 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred two thousand, eleven".