121121301110402 has 16 divisors (see below), whose sum is σ = 181971657885600. Its totient is φ = 60464095970880.

The previous prime is 121121301110399. The next prime is 121121301110417. The reversal of 121121301110402 is 204011103121121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13613777 + ... + 20677947.

It is an arithmetic number, because the mean of its divisors is an integer number (11373228617850).

Almost surely, 2^{121121301110402} is an apocalyptic number.

121121301110402 is a deficient number, since it is larger than the sum of its proper divisors (60850356775198).

121121301110402 is a wasteful number, since it uses less digits than its factorization.

121121301110402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077841.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 121121301110402 its reverse (204011103121121), we get a palindrome (325132404231523).

The spelling of 121121301110402 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, three hundred one million, one hundred ten thousand, four hundred two".