122121132011 has 2 divisors, whose sum is σ = 122121132012. Its totient is φ = 122121132010.

The previous prime is 122121131989. The next prime is 122121132041. The reversal of 122121132011 is 110231121221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122121132011 - 2²² = 122116937707 is a prime.

It is not a weakly prime, because it can be changed into another prime (122121132041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060566005 + 61060566006.

It is an arithmetic number, because the mean of its divisors is an integer number (61060566006).

Almost surely, 2^122121132011 is an apocalyptic number.

122121132011 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121132011 is an equidigital number, since it uses as much as digits as its factorization.

122121132011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 122121132011 its reverse (110231121221), we get a palindrome (232352253232).

The spelling of 122121132011 in words is "one hundred twenty-two billion, one hundred twenty-one million, one hundred thirty-two thousand, eleven".