121210221201 has 8 divisors (see below), whose sum is σ = 161615237280. Its totient is φ = 80806009632.

The previous prime is 121210221199. The next prime is 121210221203. The reversal of 121210221201 is 102122012121.

It is an interprime number because it is at equal distance from previous prime (121210221199) and next prime (121210221203).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121210221201 - 2¹ = 121210221199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121210221203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478501 + ... + 686573.

It is an arithmetic number, because the mean of its divisors is an integer number (20201904660).

Almost surely, 2^121210221201 is an apocalyptic number.

It is an amenable number.

121210221201 is a deficient number, since it is larger than the sum of its proper divisors (40405016079).

121210221201 is a wasteful number, since it uses less digits than its factorization.

121210221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402255.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121210221201 its reverse (102122012121), we get a palindrome (223332233322).

The spelling of 121210221201 in words is "one hundred twenty-one billion, two hundred ten million, two hundred twenty-one thousand, two hundred one".