120021211001101 has 4 divisors (see below), whose sum is σ = 125239524522912. Its totient is φ = 114802897479292.

The previous prime is 120021211001099. The next prime is 120021211001119. The reversal of 120021211001101 is 101100112120021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120021211001101 - 2¹ = 120021211001099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021211001201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2609156760871 + ... + 2609156760916.

It is an arithmetic number, because the mean of its divisors is an integer number (31309881130728).

Almost surely, 2^{120021211001101} is an apocalyptic number.

It is an amenable number.

120021211001101 is a deficient number, since it is larger than the sum of its proper divisors (5218313521811).

120021211001101 is an equidigital number, since it uses as much as digits as its factorization.

120021211001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5218313521810.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 120021211001101 its reverse (101100112120021), we get a palindrome (221121323121122).

The spelling of 120021211001101 in words is "one hundred twenty trillion, twenty-one billion, two hundred eleven million, one thousand, one hundred one".