121210010201 has 4 divisors (see below), whose sum is σ = 138525725952. Its totient is φ = 103894294452.

The previous prime is 121210010197. The next prime is 121210010219. The reversal of 121210010201 is 102010012121.

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 121210010201 - 2² = 121210010197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121210010401) 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, 8657857865 + ... + 8657857878.

It is an arithmetic number, because the mean of its divisors is an integer number (34631431488).

Almost surely, 2^121210010201 is an apocalyptic number.

It is an amenable number.

121210010201 is a deficient number, since it is larger than the sum of its proper divisors (17315715751).

121210010201 is an equidigital number, since it uses as much as digits as its factorization.

121210010201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17315715750.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121210010201 its reverse (102010012121), we get a palindrome (223220022322).

The spelling of 121210010201 in words is "one hundred twenty-one billion, two hundred ten million, ten thousand, two hundred one".