121084360878 has 64 divisors (see below), whose sum is σ = 268007265792. Its totient is φ = 36227917440.

The previous prime is 121084360801. The next prime is 121084360907. The reversal of 121084360878 is 878063480121.

It is a super-2 number, since 2×121084360878² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5133973 + ... + 5157503.

It is an arithmetic number, because the mean of its divisors is an integer number (4187613528).

Almost surely, 2^121084360878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121084360878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134003632896).

121084360878 is an abundant number, since it is smaller than the sum of its proper divisors (146922904914).

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

121084360878 is a wasteful number, since it uses less digits than its factorization.

121084360878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25369.

The product of its (nonzero) digits is 516096, while the sum is 48.

It can be divided in two parts, 1210843 and 60878, that added together give a palindrome (1271721).

The spelling of 121084360878 in words is "one hundred twenty-one billion, eighty-four million, three hundred sixty thousand, eight hundred seventy-eight".