121010020120220 has 384 divisors, whose sum is σ = 353206739773440. Its totient is φ = 33622029434880.

The previous prime is 121010020120217. The next prime is 121010020120273. The reversal of 121010020120220 is 22021020010121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 121010020120195 and 121010020120204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2157282494 + ... + 2157338586.

It is an arithmetic number, because the mean of its divisors is an integer number (919809218160).

Almost surely, 2^{121010020120220} is an apocalyptic number.

121010020120220 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 121010020120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176603369886720).

121010020120220 is an abundant number, since it is smaller than the sum of its proper divisors (232196719653220).

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

121010020120220 is a wasteful number, since it uses less digits than its factorization.

121010020120220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60493 (or 60491 counting only the distinct ones).

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

Adding to 121010020120220 its reverse (22021020010121), we get a palindrome (143031040130341).

The spelling of 121010020120220 in words is "one hundred twenty-one trillion, ten billion, twenty million, one hundred twenty thousand, two hundred twenty".