1201022020201 has 2 divisors, whose sum is σ = 1201022020202. Its totient is φ = 1201022020200.

The previous prime is 1201022020199. The next prime is 1201022020217. The reversal of 1201022020201 is 1020202201021.

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., 881204625625 + 319817394576 = 938725^2 + 565524^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201022020201 - 2¹ = 1201022020199 is a prime.

Together with 1201022020199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1201022020001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600511010100 + 600511010101.

It is an arithmetic number, because the mean of its divisors is an integer number (600511010101).

Almost surely, 2^{1201022020201} is an apocalyptic number.

It is an amenable number.

1201022020201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201022020201 is an equidigital number, since it uses as much as digits as its factorization.

1201022020201 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 1201022020201 its reverse (1020202201021), we get a palindrome (2221224221222).

The spelling of 1201022020201 in words is "one trillion, two hundred one billion, twenty-two million, twenty thousand, two hundred one".