2102201201237 has 2 divisors, whose sum is σ = 2102201201238. Its totient is φ = 2102201201236.

The previous prime is 2102201201183. The next prime is 2102201201279. The reversal of 2102201201237 is 7321021022012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1313703376561 + 788497824676 = 1146169^2 + 887974^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102201201237 - 2¹² = 2102201197141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102201201297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051100600618 + 1051100600619.

It is an arithmetic number, because the mean of its divisors is an integer number (1051100600619).

Almost surely, 2^{2102201201237} is an apocalyptic number.

It is an amenable number.

2102201201237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102201201237 is an equidigital number, since it uses as much as digits as its factorization.

2102201201237 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 23.

Adding to 2102201201237 its reverse (7321021022012), we get a palindrome (9423222223249).

The spelling of 2102201201237 in words is "two trillion, one hundred two billion, two hundred one million, two hundred one thousand, two hundred thirty-seven".