121092001200025 has 24 divisors (see below), whose sum is σ = 150262863505664. Its totient is φ = 96803438558400.

The previous prime is 121092001200013. The next prime is 121092001200077. The reversal of 121092001200025 is 520002100290121.

It is a de Polignac number, because none of the positive numbers 2^k-121092001200025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251319994 + ... + 251801356.

Almost surely, 2^{121092001200025} is an apocalyptic number.

It is an amenable number.

121092001200025 is a deficient number, since it is larger than the sum of its proper divisors (29170862305639).

121092001200025 is a wasteful number, since it uses less digits than its factorization.

121092001200025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488641 (or 488636 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 121092001200025 its reverse (520002100290121), we get a palindrome (641094101490146).

The spelling of 121092001200025 in words is "one hundred twenty-one trillion, ninety-two billion, one million, two hundred thousand, twenty-five".