121112051125 has 32 divisors (see below), whose sum is σ = 168387579360. Its totient is φ = 86352537600.

The previous prime is 121112051059. The next prime is 121112051143. The reversal of 121112051125 is 521150211121.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 72300218769 + 48811832356 = 268887^2 + 220934^2 .

It is not a de Polignac number, because 121112051125 - 2¹⁷ = 121111920053 is a prime.

It is a super-2 number, since 2×121112051125² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121112051096 and 121112051105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1237884 + ... + 1332133.

It is an arithmetic number, because the mean of its divisors is an integer number (5262111855).

Almost surely, 2^121112051125 is an apocalyptic number.

It is an amenable number.

121112051125 is a deficient number, since it is larger than the sum of its proper divisors (47275528235).

121112051125 is a wasteful number, since it uses less digits than its factorization.

121112051125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570074 (or 2570064 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 22.

Adding to 121112051125 its reverse (521150211121), we get a palindrome (642262262246).

The spelling of 121112051125 in words is "one hundred twenty-one billion, one hundred twelve million, fifty-one thousand, one hundred twenty-five".