121421124002 has 16 divisors (see below), whose sum is σ = 182489837112. Its totient is φ = 60591283200.

The previous prime is 121421123983. The next prime is 121421124017. The reversal of 121421124002 is 200421124121.

It can be written as a sum of positive squares in 4 ways, for example, as 113387766361 + 8033357641 = 336731^2 + 89629^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2398868 + ... + 2448960.

Almost surely, 2^121421124002 is an apocalyptic number.

121421124002 is a deficient number, since it is larger than the sum of its proper divisors (61068713110).

121421124002 is a wasteful number, since it uses less digits than its factorization.

121421124002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52453.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121421124002 its reverse (200421124121), we get a palindrome (321842248123).

The spelling of 121421124002 in words is "one hundred twenty-one billion, four hundred twenty-one million, one hundred twenty-four thousand, two".