121101101212 has 24 divisors (see below), whose sum is σ = 260833141856. Its totient is φ = 47908127808.

The previous prime is 121101101071. The next prime is 121101101227. The reversal of 121101101212 is 212101101121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 121101101192 and 121101101201.

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, 166347303 + ... + 166348030.

Almost surely, 2^121101101212 is an apocalyptic number.

It is an amenable number.

121101101212 is an abundant number, since it is smaller than the sum of its proper divisors (139732040644).

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

121101101212 is a wasteful number, since it uses less digits than its factorization.

121101101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332695357 (or 332695355 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121101101212 its reverse (212101101121), we get a palindrome (333202202333).

Subtracting 121101101212 from its reverse (212101101121), we obtain a palindrome (90999999909).

The spelling of 121101101212 in words is "one hundred twenty-one billion, one hundred one million, one hundred one thousand, two hundred twelve".