120012011121 has 32 divisors (see below), whose sum is σ = 168064985088. Its totient is φ = 76030669440.

The previous prime is 120012011117. The next prime is 120012011123. The reversal of 120012011121 is 121110210021.

It is not a de Polignac number, because 120012011121 - 2² = 120012011117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120012011097 and 120012011106.

It is not an unprimeable number, because it can be changed into a prime (120012011123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6578805 + ... + 6597021.

It is an arithmetic number, because the mean of its divisors is an integer number (5252030784).

Almost surely, 2^120012011121 is an apocalyptic number.

It is an amenable number.

120012011121 is a deficient number, since it is larger than the sum of its proper divisors (48052973967).

120012011121 is a wasteful number, since it uses less digits than its factorization.

120012011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18861.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120012011121 its reverse (121110210021), we get a palindrome (241122221142).

The spelling of 120012011121 in words is "one hundred twenty billion, twelve million, eleven thousand, one hundred twenty-one".