12122021121011 has 2 divisors, whose sum is σ = 12122021121012. Its totient is φ = 12122021121010.

The previous prime is 12122021120987. The next prime is 12122021121013. The reversal of 12122021121011 is 11012112022121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12122021121011 - 2²² = 12122016926707 is a prime.

It is a super-2 number, since 2×12122021121011² (a number of 27 digits) contains 22 as substring.

Together with 12122021121013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12122021121013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061010560505 + 6061010560506.

It is an arithmetic number, because the mean of its divisors is an integer number (6061010560506).

Almost surely, 2^{12122021121011} is an apocalyptic number.

12122021121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12122021121011 is an equidigital number, since it uses as much as digits as its factorization.

12122021121011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12122021121011 its reverse (11012112022121), we get a palindrome (23134133143132).

The spelling of 12122021121011 in words is "twelve trillion, one hundred twenty-two billion, twenty-one million, one hundred twenty-one thousand, eleven".