121838252092 has 18 divisors (see below), whose sum is σ = 217850009552. Its totient is φ = 59622970104.

The previous prime is 121838252087. The next prime is 121838252093. The reversal of 121838252092 is 290252838121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121838252093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6885588 + ... + 6903259.

Almost surely, 2^121838252092 is an apocalyptic number.

It is an amenable number.

121838252092 is a deficient number, since it is larger than the sum of its proper divisors (96011757460).

121838252092 is a wasteful number, since it uses less digits than its factorization.

121838252092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13788945 (or 13788896 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 121838252092 in words is "one hundred twenty-one billion, eight hundred thirty-eight million, two hundred fifty-two thousand, ninety-two".