121210030212 has 24 divisors (see below), whose sum is σ = 283550467200. Its totient is φ = 40299477216.

The previous prime is 121210030181. The next prime is 121210030217. The reversal of 121210030212 is 212030012121.

It is a junction number, because it is equal to n+sod(n) for n = 121210030191 and 121210030200.

It is not an unprimeable number, because it can be changed into a prime (121210030217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12978412 + ... + 12987747.

It is an arithmetic number, because the mean of its divisors is an integer number (11814602800).

Almost surely, 2^121210030212 is an apocalyptic number.

121210030212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121210030212 is an abundant number, since it is smaller than the sum of its proper divisors (162340436988).

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

121210030212 is a wasteful number, since it uses less digits than its factorization.

121210030212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25966555 (or 25966553 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121210030212 its reverse (212030012121), we get a palindrome (333240042333).

The spelling of 121210030212 in words is "one hundred twenty-one billion, two hundred ten million, thirty thousand, two hundred twelve".