120012021121211 has 8 divisors (see below), whose sum is σ = 125798193440304. Its totient is φ = 114361994033280.

The previous prime is 120012021121127. The next prime is 120012021121243. The reversal of 120012021121211 is 112121120210021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120012021121211 - 2⁴² = 115613974610107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120012021121211.

It is not an unprimeable number, because it can be changed into a prime (120012021121411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34036305986 + ... + 34036309511.

It is an arithmetic number, because the mean of its divisors is an integer number (15724774180038).

Almost surely, 2^{120012021121211} is an apocalyptic number.

120012021121211 is a deficient number, since it is larger than the sum of its proper divisors (5786172319093).

120012021121211 is an equidigital number, since it uses as much as digits as its factorization.

120012021121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68072615581.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 120012021121211 its reverse (112121120210021), we get a palindrome (232133141331232).

The spelling of 120012021121211 in words is "one hundred twenty trillion, twelve billion, twenty-one million, one hundred twenty-one thousand, two hundred eleven".