121211110000212 has 24 divisors (see below), whose sum is σ = 282827196052800. Its totient is φ = 40403521516416.

The previous prime is 121211110000163. The next prime is 121211110000237. The reversal of 121211110000212 is 212000011112121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121211110000191 and 121211110000200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19935637 + ... + 25295292.

It is an arithmetic number, because the mean of its divisors is an integer number (11784466502200).

Almost surely, 2^{121211110000212} is an apocalyptic number.

121211110000212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121211110000212 is an abundant number, since it is smaller than the sum of its proper divisors (161616086052588).

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

121211110000212 is a wasteful number, since it uses less digits than its factorization.

121211110000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45454255 (or 45454253 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121211110000212 its reverse (212000011112121), we get a palindrome (333211121112333).

The spelling of 121211110000212 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred ten million, two hundred twelve", and thus it is an aban number.