121025105244 has 36 divisors (see below), whose sum is σ = 305948987344. Its totient is φ = 40338482112.

The previous prime is 121025105221. The next prime is 121025105249. The reversal of 121025105244 is 442501520121.

It is a happy number.

121025105244 is a `hidden beast` number, since 1 + 2 + 102 + 510 + 5 + 2 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121025105249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 346809 + ... + 601935.

Almost surely, 2^121025105244 is an apocalyptic number.

It is an amenable number.

121025105244 is an abundant number, since it is smaller than the sum of its proper divisors (184923882100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121025105244 is a wasteful number, since it uses less digits than its factorization.

121025105244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268314 (or 268309 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 121025105244 its reverse (442501520121), we get a palindrome (563526625365).

The spelling of 121025105244 in words is "one hundred twenty-one billion, twenty-five million, one hundred five thousand, two hundred forty-four".