101121212 has 12 divisors (see below), whose sum is σ = 177053856. Its totient is φ = 50534400.

The previous prime is 101121203. The next prime is 101121247. The reversal of 101121212 is 212121101.

It is a junction number, because it is equal to n+sod(n) for n = 101121193 and 101121202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4028 + ... + 14780.

It is an arithmetic number, because the mean of its divisors is an integer number (14754488).

Almost surely, 2^101121212 is an apocalyptic number.

It is an amenable number.

101121212 is a deficient number, since it is larger than the sum of its proper divisors (75932644).

101121212 is a wasteful number, since it uses less digits than its factorization.

101121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13108 (or 13106 counting only the distinct ones).

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

The square root of 101121212 is about 10055.9043352649. The cubic root of 101121212 is about 465.8871751270.

Adding to 101121212 its reverse (212121101), we get a palindrome (313242313).

The spelling of 101121212 in words is "one hundred one million, one hundred twenty-one thousand, two hundred twelve".