121401525014 has 64 divisors (see below), whose sum is σ = 230443315200. Its totient is φ = 46590784800.

The previous prime is 121401524999. The next prime is 121401525019. The reversal of 121401525014 is 410525104121.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121401525019) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 13761497 + ... + 13770315.

It is an arithmetic number, because the mean of its divisors is an integer number (3600676800).

Almost surely, 2^121401525014 is an apocalyptic number.

121401525014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121401525014 is a deficient number, since it is larger than the sum of its proper divisors (109041790186).

121401525014 is a wasteful number, since it uses less digits than its factorization.

121401525014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10169.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 121401525014 its reverse (410525104121), we get a palindrome (531926629135).

The spelling of 121401525014 in words is "one hundred twenty-one billion, four hundred one million, five hundred twenty-five thousand, fourteen".