121013212 has 48 divisors (see below), whose sum is σ = 230436864. Its totient is φ = 55440000.

The previous prime is 121013197. The next prime is 121013219. The reversal of 121013212 is 212310121.

It is a junction number, because it is equal to n+sod(n) for n = 121013192 and 121013201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430512 + ... + 430792.

It is an arithmetic number, because the mean of its divisors is an integer number (4800768).

Almost surely, 2^121013212 is an apocalyptic number.

It is an amenable number.

121013212 is a deficient number, since it is larger than the sum of its proper divisors (109423652).

121013212 is a wasteful number, since it uses less digits than its factorization.

121013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 121013212 is about 11000.6005290620. The cubic root of 121013212 is about 494.6267457929.

Adding to 121013212 its reverse (212310121), we get a palindrome (333323333).

The spelling of 121013212 in words is "one hundred twenty-one million, thirteen thousand, two hundred twelve".