121120211212 has 192 divisors, whose sum is σ = 292882480128. Its totient is φ = 42307200000.

The previous prime is 121120211167. The next prime is 121120211239. The reversal of 121120211212 is 212112021121.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21430587 + ... + 21436237.

It is an arithmetic number, because the mean of its divisors is an integer number (1525429584).

Almost surely, 2^121120211212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121120211212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146441240064).

121120211212 is an abundant number, since it is smaller than the sum of its proper divisors (171762268916).

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

121120211212 is a wasteful number, since it uses less digits than its factorization.

121120211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5840 (or 5838 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121120211212 its reverse (212112021121), we get a palindrome (333232232333).

It can be divided in two parts, 12112021121 and 2, that multiplied together give a palindrome (24224042242).

The spelling of 121120211212 in words is "one hundred twenty-one billion, one hundred twenty million, two hundred eleven thousand, two hundred twelve".