121202112201 has 16 divisors (see below), whose sum is σ = 161890560000. Its totient is φ = 80657651088.

The previous prime is 121202112193. The next prime is 121202112209. The reversal of 121202112201 is 102211202121.

It is an interprime number because it is at equal distance from previous prime (121202112193) and next prime (121202112209).

It is not a de Polignac number, because 121202112201 - 2³ = 121202112193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121202112209) 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 15 ways as a sum of consecutive naturals, for example, 4648800 + ... + 4674798.

It is an arithmetic number, because the mean of its divisors is an integer number (10118160000).

Almost surely, 2^121202112201 is an apocalyptic number.

It is an amenable number.

121202112201 is a deficient number, since it is larger than the sum of its proper divisors (40688447799).

121202112201 is a wasteful number, since it uses less digits than its factorization.

121202112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28708.

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

Adding to 121202112201 its reverse (102211202121), we get a palindrome (223413314322).

The spelling of 121202112201 in words is "one hundred twenty-one billion, two hundred two million, one hundred twelve thousand, two hundred one".