122121332011 has 16 divisors (see below), whose sum is σ = 145851577344. Its totient is φ = 100065760704.

The previous prime is 122121332009. The next prime is 122121332027. The reversal of 122121332011 is 110233121221.

It is not a de Polignac number, because 122121332011 - 2¹ = 122121332009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122121332011.

It is not an unprimeable number, because it can be changed into a prime (122121332041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4302010 + ... + 4330303.

It is an arithmetic number, because the mean of its divisors is an integer number (9115723584).

Almost surely, 2^122121332011 is an apocalyptic number.

122121332011 is a deficient number, since it is larger than the sum of its proper divisors (23730245333).

122121332011 is an equidigital number, since it uses as much as digits as its factorization.

122121332011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8632410.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 122121332011 its reverse (110233121221), we get a palindrome (232354453232).

The spelling of 122121332011 in words is "one hundred twenty-two billion, one hundred twenty-one million, three hundred thirty-two thousand, eleven".