120011221212211 has 32 divisors (see below), whose sum is σ = 138147759356288. Its totient is φ = 102124952616960.

The previous prime is 120011221212209. The next prime is 120011221212221. The reversal of 120011221212211 is 112212122110021.

It is a happy number.

It is not a de Polignac number, because 120011221212211 - 2¹ = 120011221212209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120011221212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4789516195 + ... + 4789541251.

It is an arithmetic number, because the mean of its divisors is an integer number (4317117479884).

Almost surely, 2^{120011221212211} is an apocalyptic number.

120011221212211 is a deficient number, since it is larger than the sum of its proper divisors (18136538144077).

120011221212211 is a wasteful number, since it uses less digits than its factorization.

120011221212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32351.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 120011221212211 its reverse (112212122110021), we get a palindrome (232223343322232).

The spelling of 120011221212211 in words is "one hundred twenty trillion, eleven billion, two hundred twenty-one million, two hundred twelve thousand, two hundred eleven".