121121876 has 6 divisors (see below), whose sum is σ = 211963290. Its totient is φ = 60560936.

The previous prime is 121121873. The next prime is 121121881. The reversal of 121121876 is 678121121.

It can be written as a sum of positive squares in only one way, i.e., 112572100 + 8549776 = 10610^2 + 2924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15140231 + ... + 15140238.

It is an arithmetic number, because the mean of its divisors is an integer number (35327215).

Almost surely, 2^121121876 is an apocalyptic number.

It is an amenable number.

121121876 is a deficient number, since it is larger than the sum of its proper divisors (90841414).

121121876 is a wasteful number, since it uses less digits than its factorization.

121121876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30280473 (or 30280471 counting only the distinct ones).

The product of its digits is 1344, while the sum is 29.

The square root of 121121876 is about 11005.5384239028. The cubic root of 121121876 is about 494.7747517836.

Adding to 121121876 its reverse (678121121), we get a palindrome (799242997).

The spelling of 121121876 in words is "one hundred twenty-one million, one hundred twenty-one thousand, eight hundred seventy-six".