121227876 has 144 divisors (see below), whose sum is σ = 386725248. Its totient is φ = 31104000.

The previous prime is 121227863. The next prime is 121227881. The reversal of 121227876 is 678722121.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 121227876.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 279756 + ... + 280188.

It is an arithmetic number, because the mean of its divisors is an integer number (2685592).

Almost surely, 2^121227876 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121227876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193362624).

121227876 is an abundant number, since it is smaller than the sum of its proper divisors (265497372).

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

121227876 is a wasteful number, since it uses less digits than its factorization.

121227876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 557 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 121227876 is about 11010.3531278520. The cubic root of 121227876 is about 494.9190439996.

Adding to 121227876 its reverse (678722121), we get a palindrome (799949997).

The spelling of 121227876 in words is "one hundred twenty-one million, two hundred twenty-seven thousand, eight hundred seventy-six".