121220107026725 has 96 divisors (see below), whose sum is σ = 174465610629120. Its totient is φ = 81830298816000.

The previous prime is 121220107026611. The next prime is 121220107026727. The reversal of 121220107026725 is 527620701022121.

It is not a de Polignac number, because 121220107026725 - 2¹⁶ = 121220106961189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220107026727) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17850108080 + ... + 17850114870.

It is an arithmetic number, because the mean of its divisors is an integer number (1817350110720).

Almost surely, 2^{121220107026725} is an apocalyptic number.

It is an amenable number.

121220107026725 is a deficient number, since it is larger than the sum of its proper divisors (53245503602395).

121220107026725 is a wasteful number, since it uses less digits than its factorization.

121220107026725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9291 (or 9286 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

Adding to 121220107026725 its reverse (527620701022121), we get a palindrome (648840808048846).

The spelling of 121220107026725 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred seven million, twenty-six thousand, seven hundred twenty-five".