120011221012221 has 48 divisors (see below), whose sum is σ = 216130001837568. Its totient is φ = 62341790032800.

The previous prime is 120011221012211. The next prime is 120011221012229. The reversal of 120011221012221 is 122210122110021.

120011221012221 is a `hidden beast` number, since 1 + 200 + 11 + 221 + 0 + 12 + 221 = 666.

It is not a de Polignac number, because 120011221012221 - 2¹³ = 120011221004029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120011221012194 and 120011221012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120011221012229) 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, 23248590 + ... + 27937776.

It is an arithmetic number, because the mean of its divisors is an integer number (4502708371616).

Almost surely, 2^{120011221012221} is an apocalyptic number.

120011221012221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120011221012221 is a deficient number, since it is larger than the sum of its proper divisors (96118780825347).

120011221012221 is a wasteful number, since it uses less digits than its factorization.

120011221012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726142 (or 4726139 counting only the distinct ones).

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

Adding to 120011221012221 its reverse (122210122110021), we get a palindrome (242221343122242).

The spelling of 120011221012221 in words is "one hundred twenty trillion, eleven billion, two hundred twenty-one million, twelve thousand, two hundred twenty-one".