121022120222000 has 320 divisors, whose sum is σ = 319002702520320. Its totient is φ = 44270506368000.

The previous prime is 121022120221997. The next prime is 121022120222011. The reversal of 121022120222000 is 222021220121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121022120222000.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117846746 + ... + 118869254.

It is an arithmetic number, because the mean of its divisors is an integer number (996883445376).

Almost surely, 2^{121022120222000} is an apocalyptic number.

121022120222000 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 121022120222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159501351260160).

121022120222000 is an abundant number, since it is smaller than the sum of its proper divisors (197980582298320).

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

121022120222000 is a wasteful number, since it uses less digits than its factorization.

121022120222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022669 (or 1022653 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121022120222000 its reverse (222021220121), we get a palindrome (121244141442121).

The spelling of 121022120222000 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty million, two hundred twenty-two thousand".