121015106 has 4 divisors (see below), whose sum is σ = 181522662. Its totient is φ = 60507552.

The previous prime is 121015099. The next prime is 121015133. The reversal of 121015106 is 601510121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601510121 = 67 ⋅8977763.

It can be written as a sum of positive squares in only one way, i.e., 109516225 + 11498881 = 10465^2 + 3391^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30253775 + ... + 30253778.

Almost surely, 2^121015106 is an apocalyptic number.

121015106 is a deficient number, since it is larger than the sum of its proper divisors (60507556).

121015106 is an equidigital number, since it uses as much as digits as its factorization.

121015106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60507555.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 121015106 is about 11000.6866149345. The cubic root of 121015106 is about 494.6293262775.

Adding to 121015106 its reverse (601510121), we get a palindrome (722525227).

It can be divided in two parts, 121015 and 106, that added together give a palindrome (121121).

The spelling of 121015106 in words is "one hundred twenty-one million, fifteen thousand, one hundred six".