120012211110021 has 8 divisors (see below), whose sum is σ = 160024602303744. Its totient is φ = 80003980328160.

The previous prime is 120012211109969. The next prime is 120012211110023. The reversal of 120012211110021 is 120011112210021.

It is a happy number.

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

It is not a de Polignac number, because 120012211110021 - 2¹¹ = 120012211107973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120012211110023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040035656 + ... + 1040151041.

It is an arithmetic number, because the mean of its divisors is an integer number (20003075287968).

Almost surely, 2^{120012211110021} is an apocalyptic number.

It is an amenable number.

120012211110021 is a deficient number, since it is larger than the sum of its proper divisors (40012391193723).

120012211110021 is a wasteful number, since it uses less digits than its factorization.

120012211110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080205931.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 120012211110021 its reverse (120011112210021), we get a palindrome (240023323320042).

It can be divided in two parts, 1200 and 12211110021, that added together give a palindrome (12211111221).

The spelling of 120012211110021 in words is "one hundred twenty trillion, twelve billion, two hundred eleven million, one hundred ten thousand, twenty-one".