121022220211 has 8 divisors (see below), whose sum is σ = 121105865664. Its totient is φ = 120938607720.

The previous prime is 121022220199. The next prime is 121022220217. The reversal of 121022220211 is 112022220121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 121022220211 - 2⁷ = 121022220083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121022220217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16779396 + ... + 16786606.

It is an arithmetic number, because the mean of its divisors is an integer number (15138233208).

Almost surely, 2^121022220211 is an apocalyptic number.

121022220211 is a deficient number, since it is larger than the sum of its proper divisors (83645453).

121022220211 is an equidigital number, since it uses as much as digits as its factorization.

121022220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16481.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121022220211 its reverse (112022220121), we get a palindrome (233044440332).

The spelling of 121022220211 in words is "one hundred twenty-one billion, twenty-two million, two hundred twenty thousand, two hundred eleven".