120121101021201 has 64 divisors (see below), whose sum is σ = 190162635456000. Its totient is φ = 67404702210048.

The previous prime is 120121101021199. The next prime is 120121101021227. The reversal of 120121101021201 is 102120101121021.

It is a happy number.

It is not a de Polignac number, because 120121101021201 - 2¹ = 120121101021199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120121101021001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13710265 + ... + 20693321.

It is an arithmetic number, because the mean of its divisors is an integer number (2971291179000).

Almost surely, 2^{120121101021201} is an apocalyptic number.

It is an amenable number.

120121101021201 is a deficient number, since it is larger than the sum of its proper divisors (70041534434799).

120121101021201 is an equidigital number, since it uses as much as digits as its factorization.

120121101021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983383 (or 6983369 counting only the distinct ones).

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

Adding to 120121101021201 its reverse (102120101121021), we get a palindrome (222241202142222).

The spelling of 120121101021201 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred one million, twenty-one thousand, two hundred one".