121535212 has 6 divisors (see below), whose sum is σ = 212686628. Its totient is φ = 60767604.

The previous prime is 121535207. The next prime is 121535213. The reversal of 121535212 is 212535121.

It is not an unprimeable number, because it can be changed into a prime (121535213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15191898 + ... + 15191905.

Almost surely, 2^121535212 is an apocalyptic number.

It is an amenable number.

121535212 is a deficient number, since it is larger than the sum of its proper divisors (91151416).

121535212 is a wasteful number, since it uses less digits than its factorization.

121535212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30383807 (or 30383805 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 121535212 is about 11024.3009755721. The cubic root of 121535212 is about 495.3369294051.

Subtracting 121535212 from its reverse (212535121), we obtain a palindrome (90999909).

The spelling of 121535212 in words is "one hundred twenty-one million, five hundred thirty-five thousand, two hundred twelve".