120101020121001 has 16 divisors (see below), whose sum is σ = 160158106445760. Its totient is φ = 80055640896000.

The previous prime is 120101020120997. The next prime is 120101020121083. The reversal of 120101020121001 is 100121020101021.

It is not a de Polignac number, because 120101020121001 - 2² = 120101020120997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120101020120001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1165966501 + ... + 1166069501.

It is an arithmetic number, because the mean of its divisors is an integer number (10009881652860).

Almost surely, 2^{120101020121001} is an apocalyptic number.

It is an amenable number.

120101020121001 is a deficient number, since it is larger than the sum of its proper divisors (40057086324759).

120101020121001 is a wasteful number, since it uses less digits than its factorization.

120101020121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156056.

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

Adding to 120101020121001 its reverse (100121020101021), we get a palindrome (220222040222022).

It can be divided in two parts, 120101020 and 121001, that added together give a palindrome (120222021).

The spelling of 120101020121001 in words is "one hundred twenty trillion, one hundred one billion, twenty million, one hundred twenty-one thousand, one".