121012021201 has 4 divisors (see below), whose sum is σ = 121349102400. Its totient is φ = 120674940004.

The previous prime is 121012021187. The next prime is 121012021211. The reversal of 121012021201 is 102120210121.

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 121012021201 - 2¹¹ = 121012019153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121012021211) 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 3 ways as a sum of consecutive naturals, for example, 168540061 + ... + 168540778.

It is an arithmetic number, because the mean of its divisors is an integer number (30337275600).

Almost surely, 2^121012021201 is an apocalyptic number.

It is an amenable number.

121012021201 is a deficient number, since it is larger than the sum of its proper divisors (337081199).

121012021201 is an equidigital number, since it uses as much as digits as its factorization.

121012021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337081198.

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

Adding to 121012021201 its reverse (102120210121), we get a palindrome (223132231322).

It can be divided in two parts, 1210120 and 21201, that added together give a palindrome (1231321).

The spelling of 121012021201 in words is "one hundred twenty-one billion, twelve million, twenty-one thousand, two hundred one".