121000011120220 has 96 divisors (see below), whose sum is σ = 265244448583296. Its totient is φ = 46322365440000.

The previous prime is 121000011120161. The next prime is 121000011120223. The reversal of 121000011120220 is 22021110000121.

It is a self number, because there is not a number n which added to its sum of digits gives 121000011120220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000011120223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330417220 + ... + 330783220.

It is an arithmetic number, because the mean of its divisors is an integer number (2762963006076).

Almost surely, 2^{121000011120220} is an apocalyptic number.

121000011120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121000011120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132622224291648).

121000011120220 is an abundant number, since it is smaller than the sum of its proper divisors (144244437463076).

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

121000011120220 is a wasteful number, since it uses less digits than its factorization.

121000011120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373711 (or 373709 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121000011120220 its reverse (22021110000121), we get a palindrome (143021121120341).

The spelling of 121000011120220 in words is "one hundred twenty-one trillion, eleven million, one hundred twenty thousand, two hundred twenty".