2001222200137 has 2 divisors, whose sum is σ = 2001222200138. Its totient is φ = 2001222200136.

The previous prime is 2001222200111. The next prime is 2001222200143. The reversal of 2001222200137 is 7310022221002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1801981379641 + 199240820496 = 1342379^2 + 446364^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001222200137 - 2¹¹ = 2001222198089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001222200737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000611100068 + 1000611100069.

It is an arithmetic number, because the mean of its divisors is an integer number (1000611100069).

Almost surely, 2^{2001222200137} is an apocalyptic number.

It is an amenable number.

2001222200137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001222200137 is an equidigital number, since it uses as much as digits as its factorization.

2001222200137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 2001222200137 its reverse (7310022221002), we get a palindrome (9311244421139).

The spelling of 2001222200137 in words is "two trillion, one billion, two hundred twenty-two million, two hundred thousand, one hundred thirty-seven".