1202102200001 has 2 divisors, whose sum is σ = 1202102200002. Its totient is φ = 1202102200000.

The previous prime is 1202102199997. The next prime is 1202102200007. The reversal of 1202102200001 is 1000022012021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194209654401 + 7892545600 = 1092799^2 + 88840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202102200001 - 2² = 1202102199997 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202102200007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601051100000 + 601051100001.

It is an arithmetic number, because the mean of its divisors is an integer number (601051100001).

Almost surely, 2^{1202102200001} is an apocalyptic number.

It is an amenable number.

1202102200001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202102200001 is an equidigital number, since it uses as much as digits as its factorization.

1202102200001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1202102200001 its reverse (1000022012021), we get a palindrome (2202124212022).

The spelling of 1202102200001 in words is "one trillion, two hundred two billion, one hundred two million, two hundred thousand, one".