121012436 has 24 divisors (see below), whose sum is σ = 214254600. Its totient is φ = 59801472.

The previous prime is 121012417. The next prime is 121012439. The reversal of 121012436 is 634210121.

It can be written as a sum of positive squares in 4 ways, for example, as 11600836 + 109411600 = 3406^2 + 10460^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164726 + ... + 165458.

It is an arithmetic number, because the mean of its divisors is an integer number (8927275).

Almost surely, 2^121012436 is an apocalyptic number.

It is an amenable number.

121012436 is a deficient number, since it is larger than the sum of its proper divisors (93242164).

121012436 is a wasteful number, since it uses less digits than its factorization.

121012436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163 (or 1161 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 121012436 is about 11000.5652582038. The cubic root of 121012436 is about 494.6256885222.

Adding to 121012436 its reverse (634210121), we get a palindrome (755222557).

The spelling of 121012436 in words is "one hundred twenty-one million, twelve thousand, four hundred thirty-six".