121120220221120 has 28 divisors (see below), whose sum is σ = 288417524402304. Its totient is φ = 48448088088320.

The previous prime is 121120220221067. The next prime is 121120220221139. The reversal of 121120220221120 is 21122022021121.

It is a super-2 number, since 2×121120220221120² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189250343776 + ... + 189250344415.

Almost surely, 2^{121120220221120} is an apocalyptic number.

121120220221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120220221120 is an abundant number, since it is smaller than the sum of its proper divisors (167297304181184).

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

121120220221120 is an equidigital number, since it uses as much as digits as its factorization.

121120220221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378500688208 (or 378500688198 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121120220221120 its reverse (21122022021121), we get a palindrome (142242242242241).

The spelling of 121120220221120 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty million, two hundred twenty-one thousand, one hundred twenty".