121202200202101 has 4 divisors (see below), whose sum is σ = 122015637787500. Its totient is φ = 120388762616704.

The previous prime is 121202200202087. The next prime is 121202200202113. The reversal of 121202200202101 is 101202002202121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49465128591025 + 71737071611076 = 7033145^2 + 8469774^2 .

It is a cyclic number.

It is not a de Polignac number, because 121202200202101 - 2¹⁹ = 121202199677813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202200202141) 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, 406718792476 + ... + 406718792773.

It is an arithmetic number, because the mean of its divisors is an integer number (30503909446875).

Almost surely, 2^{121202200202101} is an apocalyptic number.

It is an amenable number.

121202200202101 is a deficient number, since it is larger than the sum of its proper divisors (813437585399).

121202200202101 is an equidigital number, since it uses as much as digits as its factorization.

121202200202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813437585398.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121202200202101 its reverse (101202002202121), we get a palindrome (222404202404222).

The spelling of 121202200202101 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred million, two hundred two thousand, one hundred one".