120121220212011 has 48 divisors (see below), whose sum is σ = 176455711111680. Its totient is φ = 78735254095680.

The previous prime is 120121220211973. The next prime is 120121220212061. The reversal of 120121220212011 is 110212022121021.

120121220212011 is a `hidden beast` number, since 1 + 201 + 21 + 220 + 21 + 201 + 1 = 666.

It is not a de Polignac number, because 120121220212011 - 2³⁰ = 120120146470187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120121220212061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 54428896 + ... + 56592818.

It is an arithmetic number, because the mean of its divisors is an integer number (3676160648160).

Almost surely, 2^{120121220212011} is an apocalyptic number.

120121220212011 is a deficient number, since it is larger than the sum of its proper divisors (56334490899669).

120121220212011 is a wasteful number, since it uses less digits than its factorization.

120121220212011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164496 (or 2164493 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 120121220212011 its reverse (110212022121021), we get a palindrome (230333242333032).

The spelling of 120121220212011 in words is "one hundred twenty trillion, one hundred twenty-one billion, two hundred twenty million, two hundred twelve thousand, eleven".