1201220101201 has 4 divisors (see below), whose sum is σ = 1271880107172. Its totient is φ = 1130560095232.

The previous prime is 1201220101199. The next prime is 1201220101253. The reversal of 1201220101201 is 1021010221021.

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 447127592976 + 754092508225 = 668676^2 + 868385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201220101201 - 2¹ = 1201220101199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201220131201) 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, 35330002960 + ... + 35330002993.

It is an arithmetic number, because the mean of its divisors is an integer number (317970026793).

Almost surely, 2^{1201220101201} is an apocalyptic number.

It is an amenable number.

1201220101201 is a deficient number, since it is larger than the sum of its proper divisors (70660005971).

1201220101201 is an equidigital number, since it uses as much as digits as its factorization.

1201220101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70660005970.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1201220101201 its reverse (1021010221021), we get a palindrome (2222230322222).

The spelling of 1201220101201 in words is "one trillion, two hundred one billion, two hundred twenty million, one hundred one thousand, two hundred one".