1200202222001 has 2 divisors, whose sum is σ = 1200202222002. Its totient is φ = 1200202222000.

The previous prime is 1200202221991. The next prime is 1200202222027. The reversal of 1200202222001 is 1002222020021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1193390195776 + 6812026225 = 1092424^2 + 82535^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200202222001 - 2¹⁰ = 1200202220977 is a prime.

It is a super-2 number, since 2×1200202222001² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1200202222081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600101111000 + 600101111001.

It is an arithmetic number, because the mean of its divisors is an integer number (600101111001).

Almost surely, 2^{1200202222001} is an apocalyptic number.

It is an amenable number.

1200202222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200202222001 is an equidigital number, since it uses as much as digits as its factorization.

1200202222001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1200202222001 its reverse (1002222020021), we get a palindrome (2202424242022).

The spelling of 1200202222001 in words is "one trillion, two hundred billion, two hundred two million, two hundred twenty-two thousand, one".