1202202120001 has 2 divisors, whose sum is σ = 1202202120002. Its totient is φ = 1202202120000.

The previous prime is 1202202119959. The next prime is 1202202120011. The reversal of 1202202120001 is 1000212022021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 629832704400 + 572369415601 = 793620^2 + 756551^2 .

It is an emirp because it is prime and its reverse (1000212022021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202202120001 - 2¹¹ = 1202202117953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202202120011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601101060000 + 601101060001.

It is an arithmetic number, because the mean of its divisors is an integer number (601101060001).

Almost surely, 2^{1202202120001} is an apocalyptic number.

It is an amenable number.

1202202120001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202202120001 is an equidigital number, since it uses as much as digits as its factorization.

1202202120001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1202202120001 its reverse (1000212022021), we get a palindrome (2202414142022).

The spelling of 1202202120001 in words is "one trillion, two hundred two billion, two hundred two million, one hundred twenty thousand, one".