121021110122 has 8 divisors (see below), whose sum is σ = 198034543872. Its totient is φ = 55009595500.

The previous prime is 121021110101. The next prime is 121021110137. The reversal of 121021110122 is 221011120121.

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

It is a super-2 number, since 2×121021110122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121021110097 and 121021110106.

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, 2750479754 + ... + 2750479797.

It is an arithmetic number, because the mean of its divisors is an integer number (24754317984).

Almost surely, 2^121021110122 is an apocalyptic number.

121021110122 is a deficient number, since it is larger than the sum of its proper divisors (77013433750).

121021110122 is a wasteful number, since it uses less digits than its factorization.

121021110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500959564.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121021110122 its reverse (221011120121), we get a palindrome (342032230243).

Subtracting 121021110122 from its reverse (221011120121), we obtain a palindrome (99990009999).

The spelling of 121021110122 in words is "one hundred twenty-one billion, twenty-one million, one hundred ten thousand, one hundred twenty-two".