121102212 has 48 divisors (see below), whose sum is σ = 352300032. Its totient is φ = 31454880.

The previous prime is 121102171. The next prime is 121102243. The reversal of 121102212 is 212201121.

It is a super-3 number, since 3×121102212³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64608 + ... + 66455.

It is an arithmetic number, because the mean of its divisors is an integer number (7339584).

Almost surely, 2^121102212 is an apocalyptic number.

121102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121102212 is an abundant number, since it is smaller than the sum of its proper divisors (231197820).

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

121102212 is a wasteful number, since it uses less digits than its factorization.

121102212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131088 (or 131086 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 121102212 is about 11004.6450192635. The cubic root of 121102212 is about 494.7479749601.

Adding to 121102212 its reverse (212201121), we get a palindrome (333303333).

The spelling of 121102212 in words is "one hundred twenty-one million, one hundred two thousand, two hundred twelve".