121241402 has 16 divisors (see below), whose sum is σ = 189189000. Its totient is φ = 58201920.

The previous prime is 121241383. The next prime is 121241423. The reversal of 121241402 is 204142121.

It can be written as a sum of positive squares in 4 ways, for example, as 100982401 + 20259001 = 10049^2 + 4501^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4724 + ... + 16272.

Almost surely, 2^121241402 is an apocalyptic number.

121241402 is a deficient number, since it is larger than the sum of its proper divisors (67947598).

121241402 is a wasteful number, since it uses less digits than its factorization.

121241402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11761.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 121241402 is about 11010.9673507826. The cubic root of 121241402 is about 494.9374501788.

Adding to 121241402 its reverse (204142121), we get a palindrome (325383523).

The spelling of 121241402 in words is "one hundred twenty-one million, two hundred forty-one thousand, four hundred two".