121021122 has 8 divisors (see below), whose sum is σ = 242042256. Its totient is φ = 40340372.

The previous prime is 121021111. The next prime is 121021151. The reversal of 121021122 is 221120121.

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

121021122 is an admirable number.

It is a super-2 number, since 2×121021122² = 29292223940277768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121021098 and 121021107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10085088 + ... + 10085099.

It is an arithmetic number, because the mean of its divisors is an integer number (30255282).

Almost surely, 2^121021122 is an apocalyptic number.

121021122 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.

121021122 is a wasteful number, since it uses less digits than its factorization.

121021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20170192.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 121021122 is about 11000.9600490139. The cubic root of 121021122 is about 494.6375226116.

Adding to 121021122 its reverse (221120121), we get a palindrome (342141243).

The spelling of 121021122 in words is "one hundred twenty-one million, twenty-one thousand, one hundred twenty-two".