120121101211 has 2 divisors, whose sum is σ = 120121101212. Its totient is φ = 120121101210.

The previous prime is 120121101103. The next prime is 120121101239. The reversal of 120121101211 is 112101121021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120121101211 - 2⁹ = 120121100699 is a prime.

It is a super-2 number, since 2×120121101211² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120121101191 and 120121101200.

It is not a weakly prime, because it can be changed into another prime (120121111211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060550605 + 60060550606.

It is an arithmetic number, because the mean of its divisors is an integer number (60060550606).

Almost surely, 2^120121101211 is an apocalyptic number.

120121101211 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121101211 is an equidigital number, since it uses as much as digits as its factorization.

120121101211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120121101211 its reverse (112101121021), we get a palindrome (232222222232).

The spelling of 120121101211 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred one thousand, two hundred eleven".