120212021211 has 4 divisors (see below), whose sum is σ = 160282694952.
Its totient is φ = 80141347472.
The previous prime is 120212021201. The next prime is 120212021221. The reversal of 120212021211 is 112120212021.
Adding to 120212021211 its reverse (112120212021), we get a palindrome (232332233232).
It is a semiprime because it is the product of two primes.
It is an interprime number because it is at equal distance from previous prime (120212021201) and next prime (120212021221).
It is a cyclic number.
It is not a de Polignac number, because 120212021211 - 29 = 120212020699 is a prime.
It is not an unprimeable number, because it can be changed into a prime (120212021201) 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, 20035336866 + ... + 20035336871.
It is an arithmetic number, because the mean of its divisors is an integer number (40070673738).
Almost surely, 2120212021211 is an apocalyptic number.
120212021211 is a deficient number, since it is larger than the sum of its proper divisors (40070673741).
120212021211 is an equidigital number, since it uses as much as digits as its factorization.
120212021211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40070673740.
The product of its (nonzero) digits is 32, while the sum is 15.
The spelling of 120212021211 in words is "one hundred twenty billion, two hundred twelve million, twenty-one thousand, two hundred eleven".