100121201201201 has 4 divisors (see below), whose sum is σ = 100121229052404. Its totient is φ = 100121173350000.

The previous prime is 100121201201167. The next prime is 100121201201233. The reversal of 100121201201201 is 102102102121001.

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 74593899674176 + 25527301527025 = 8636776^2 + 5052455^2 .

It is a cyclic number.

It is not a de Polignac number, because 100121201201201 - 2²⁶ = 100121134092337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100121201201101) 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, 7564850 + ... + 16045851.

It is an arithmetic number, because the mean of its divisors is an integer number (25030307263101).

Almost surely, 2^{100121201201201} is an apocalyptic number.

It is an amenable number.

100121201201201 is a deficient number, since it is larger than the sum of its proper divisors (27851203).

100121201201201 is an equidigital number, since it uses as much as digits as its factorization.

100121201201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27851202.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100121201201201 its reverse (102102102121001), we get a palindrome (202223303322202).

The spelling of 100121201201201 in words is "one hundred trillion, one hundred twenty-one billion, two hundred one million, two hundred one thousand, two hundred one".