121022222221120 has 168 divisors, whose sum is σ = 317409605833824. Its totient is φ = 43918444416000.

The previous prime is 121022222221097. The next prime is 121022222221193. The reversal of 121022222221120 is 21122222220121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 121022222221091 and 121022222221100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15828655 + ... + 22194385.

It is an arithmetic number, because the mean of its divisors is an integer number (1889342891868).

Almost surely, 2^{121022222221120} is an apocalyptic number.

121022222221120 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 121022222221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158704802916912).

121022222221120 is an abundant number, since it is smaller than the sum of its proper divisors (196387383612704).

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

121022222221120 is a wasteful number, since it uses less digits than its factorization.

121022222221120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6366261 (or 6366240 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 121022222221120 its reverse (21122222220121), we get a palindrome (142144444441241).

Subtracting from 121022222221120 its reverse (21122222220121), we obtain a palindrome (99900000000999).

The spelling of 121022222221120 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twenty".