121010222120 has 128 divisors (see below), whose sum is σ = 298663718400. Its totient is φ = 43921920000.

The previous prime is 121010222117. The next prime is 121010222129. The reversal of 121010222120 is 21222010121.

It is a junction number, because it is equal to n+sod(n) for n = 121010222095 and 121010222104.

It is not an unprimeable number, because it can be changed into a prime (121010222129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14805635 + ... + 14813805.

It is an arithmetic number, because the mean of its divisors is an integer number (2333310300).

Almost surely, 2^121010222120 is an apocalyptic number.

121010222120 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 121010222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149331859200).

121010222120 is an abundant number, since it is smaller than the sum of its proper divisors (177653496280).

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

121010222120 is a wasteful number, since it uses less digits than its factorization.

121010222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8979 (or 8975 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121010222120 its reverse (21222010121), we get a palindrome (142232232241).

The spelling of 121010222120 in words is "one hundred twenty-one billion, ten million, two hundred twenty-two thousand, one hundred twenty".