121002020001201 has 4 divisors (see below), whose sum is σ = 161336026668272. Its totient is φ = 80668013334132.

The previous prime is 121002020001151. The next prime is 121002020001217. The reversal of 121002020001201 is 102100020200121.

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 not a de Polignac number, because 121002020001201 - 2¹¹ = 121002019999153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121002020801201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20167003333531 + ... + 20167003333536.

It is an arithmetic number, because the mean of its divisors is an integer number (40334006667068).

Almost surely, 2^{121002020001201} is an apocalyptic number.

It is an amenable number.

121002020001201 is a deficient number, since it is larger than the sum of its proper divisors (40334006667071).

121002020001201 is an equidigital number, since it uses as much as digits as its factorization.

121002020001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40334006667070.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121002020001201 its reverse (102100020200121), we get a palindrome (223102040201322).

The spelling of 121002020001201 in words is "one hundred twenty-one trillion, two billion, twenty million, one thousand, two hundred one".