121210010020212 has 12 divisors (see below), whose sum is σ = 282823356713856. Its totient is φ = 40403336673400.

The previous prime is 121210010020091. The next prime is 121210010020213. The reversal of 121210010020212 is 212020010012121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 121210010020191 and 121210010020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121210010020213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050417084164 + ... + 5050417084187.

It is an arithmetic number, because the mean of its divisors is an integer number (23568613059488).

Almost surely, 2^{121210010020212} is an apocalyptic number.

121210010020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121210010020212 is an abundant number, since it is smaller than the sum of its proper divisors (161613346693644).

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

121210010020212 is a wasteful number, since it uses less digits than its factorization.

121210010020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100834168358 (or 10100834168356 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121210010020212 its reverse (212020010012121), we get a palindrome (333230020032333).

The spelling of 121210010020212 in words is "one hundred twenty-one trillion, two hundred ten billion, ten million, twenty thousand, two hundred twelve".