1201220103101 has 2 divisors, whose sum is σ = 1201220103102. Its totient is φ = 1201220103100.

The previous prime is 1201220102989. The next prime is 1201220103103. The reversal of 1201220103101 is 1013010221021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1043460207001 + 157759896100 = 1021499^2 + 397190^2 .

It is an emirp because it is prime and its reverse (1013010221021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201220103101 - 2¹⁸ = 1201219840957 is a prime.

It is a super-4 number, since 4×1201220103101⁴ (a number of 49 digits) contains 4444 as substring.

Together with 1201220103103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201220103103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600610051550 + 600610051551.

It is an arithmetic number, because the mean of its divisors is an integer number (600610051551).

Almost surely, 2^{1201220103101} is an apocalyptic number.

It is an amenable number.

1201220103101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201220103101 is an equidigital number, since it uses as much as digits as its factorization.

1201220103101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1201220103101 its reverse (1013010221021), we get a palindrome (2214230324122).

The spelling of 1201220103101 in words is "one trillion, two hundred one billion, two hundred twenty million, one hundred three thousand, one hundred one".