120021020101201 has 20 divisors (see below), whose sum is σ = 127579296609072. Its totient is φ = 112910422304576.

The previous prime is 120021020101189. The next prime is 120021020101243. The reversal of 120021020101201 is 102101020120021.

It is not a de Polignac number, because 120021020101201 - 2¹¹ = 120021020099153 is a prime.

It is a super-2 number, since 2×120021020101201² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120021020101271) 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 19 ways as a sum of consecutive naturals, for example, 187017270 + ... + 187657936.

Almost surely, 2^{120021020101201} is an apocalyptic number.

It is an amenable number.

120021020101201 is a deficient number, since it is larger than the sum of its proper divisors (7558276507871).

120021020101201 is an frugal number, since it uses more digits than its factorization.

120021020101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642978 (or 642927 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120021020101201 its reverse (102101020120021), we get a palindrome (222122040221222).

The spelling of 120021020101201 in words is "one hundred twenty trillion, twenty-one billion, twenty million, one hundred one thousand, two hundred one".