121054225110 has 384 divisors, whose sum is σ = 370108569600. Its totient is φ = 25316928000.

The previous prime is 121054225079. The next prime is 121054225129. The reversal of 121054225110 is 11522450121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 262590280 + ... + 262590740.

It is an arithmetic number, because the mean of its divisors is an integer number (963824400).

Almost surely, 2^121054225110 is an apocalyptic number.

121054225110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121054225110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185054284800).

121054225110 is an abundant number, since it is smaller than the sum of its proper divisors (249054344490).

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

121054225110 is a wasteful number, since it uses less digits than its factorization.

121054225110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 121054225110 its reverse (11522450121), we get a palindrome (132576675231).

The spelling of 121054225110 in words is "one hundred twenty-one billion, fifty-four million, two hundred twenty-five thousand, one hundred ten".