122121132211 has 4 divisors (see below), whose sum is σ = 131515065472. Its totient is φ = 112727198952.

The previous prime is 122121132197. The next prime is 122121132431. The reversal of 122121132211 is 112231121221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122121132211 - 2⁵ = 122121132179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122121132011) 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, 4696966611 + ... + 4696966636.

It is an arithmetic number, because the mean of its divisors is an integer number (32878766368).

Almost surely, 2^122121132211 is an apocalyptic number.

122121132211 is a deficient number, since it is larger than the sum of its proper divisors (9393933261).

122121132211 is an equidigital number, since it uses as much as digits as its factorization.

122121132211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9393933260.

The product of its digits is 96, while the sum is 19.

Adding to 122121132211 its reverse (112231121221), we get a palindrome (234352253432).

The spelling of 122121132211 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred thirty-two thousand, two hundred eleven".