121425025412 has 12 divisors (see below), whose sum is σ = 213320620380. Its totient is φ = 60476276736.

The previous prime is 121425025399. The next prime is 121425025457. The reversal of 121425025412 is 214520524121.

It can be written as a sum of positive squares in 2 ways, for example, as 116208719236 + 5216306176 = 340894^2 + 72224^2 .

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 3 ways as a sum of consecutive naturals, for example, 59057837 + ... + 59059892.

It is an arithmetic number, because the mean of its divisors is an integer number (17776718365).

Almost surely, 2^121425025412 is an apocalyptic number.

It is an amenable number.

121425025412 is a deficient number, since it is larger than the sum of its proper divisors (91895594968).

121425025412 is a wasteful number, since it uses less digits than its factorization.

121425025412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118117990 (or 118117988 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 121425025412 its reverse (214520524121), we get a palindrome (335945549533).

The spelling of 121425025412 in words is "one hundred twenty-one billion, four hundred twenty-five million, twenty-five thousand, four hundred twelve".