121021221220122 has 8 divisors (see below), whose sum is σ = 242042442440256. Its totient is φ = 40340407073372.

The previous prime is 121021221220121. The next prime is 121021221220177. The reversal of 121021221220122 is 221022122120121.

It is a sphenic number, since it is the product of 3 distinct primes.

121021221220122 is an admirable number.

It is a super-2 number, since 2×121021221220122² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121021221220121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10085101768338 + ... + 10085101768349.

It is an arithmetic number, because the mean of its divisors is an integer number (30255305305032).

Almost surely, 2^{121021221220122} is an apocalyptic number.

121021221220122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121021221220122 is a wasteful number, since it uses less digits than its factorization.

121021221220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20170203536692.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121021221220122 its reverse (221022122120121), we get a palindrome (342043343340243).

The spelling of 121021221220122 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twenty-two".