121102012212 has 12 divisors (see below), whose sum is σ = 282571361856. Its totient is φ = 40367337400.

The previous prime is 121102012201. The next prime is 121102012219. The reversal of 121102012212 is 212210201121.

121102012212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 121102012191 and 121102012200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102012219) 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, 5045917164 + ... + 5045917187.

It is an arithmetic number, because the mean of its divisors is an integer number (23547613488).

Almost surely, 2^121102012212 is an apocalyptic number.

121102012212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121102012212 is an abundant number, since it is smaller than the sum of its proper divisors (161469349644).

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

121102012212 is a wasteful number, since it uses less digits than its factorization.

121102012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10091834358 (or 10091834356 counting only the distinct ones).

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

Adding to 121102012212 its reverse (212210201121), we get a palindrome (333312213333).

The spelling of 121102012212 in words is "one hundred twenty-one billion, one hundred two million, twelve thousand, two hundred twelve".