121101212 has 24 divisors (see below), whose sum is σ = 223440000. Its totient is φ = 57271536.

The previous prime is 121101203. The next prime is 121101229. The reversal of 121101212 is 212101121.

It is a junction number, because it is equal to n+sod(n) for n = 121101193 and 121101202.

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, 80039 + ... + 81537.

It is an arithmetic number, because the mean of its divisors is an integer number (9310000).

Almost surely, 2^121101212 is an apocalyptic number.

It is an amenable number.

121101212 is a deficient number, since it is larger than the sum of its proper divisors (102338788).

121101212 is a wasteful number, since it uses less digits than its factorization.

121101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585 (or 2583 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 121101212 is about 11004.5995838104. The cubic root of 121101212 is about 494.7466131647.

Adding to 121101212 its reverse (212101121), we get a palindrome (333202333).

Subtracting 121101212 from its reverse (212101121), we obtain a palindrome (90999909).

The spelling of 121101212 in words is "one hundred twenty-one million, one hundred one thousand, two hundred twelve".