20001202201249 has 2 divisors, whose sum is σ = 20001202201250. Its totient is φ = 20001202201248.

The previous prime is 20001202201213. The next prime is 20001202201307. The reversal of 20001202201249 is 94210220210002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18776682904849 + 1224519296400 = 4333207^2 + 1106580^2 .

It is a cyclic number.

It is not a de Polignac number, because 20001202201249 - 2⁴¹ = 17802178945697 is a prime.

It is not a weakly prime, because it can be changed into another prime (20001202205249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000601100624 + 10000601100625.

It is an arithmetic number, because the mean of its divisors is an integer number (10000601100625).

Almost surely, 2^{20001202201249} is an apocalyptic number.

It is an amenable number.

20001202201249 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001202201249 is an equidigital number, since it uses as much as digits as its factorization.

20001202201249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 20001202201249 in words is "twenty trillion, one billion, two hundred two million, two hundred one thousand, two hundred forty-nine".