20002501229 has 2 divisors, whose sum is σ = 20002501230. Its totient is φ = 20002501228.

The previous prime is 20002501213. The next prime is 20002501231. The reversal of 20002501229 is 92210520002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18042668329 + 1959832900 = 134323^2 + 44270^2 .

It is a cyclic number.

It is not a de Polignac number, because 20002501229 - 2⁴ = 20002501213 is a prime.

It is a super-2 number, since 2×20002501229² (a number of 21 digits) contains 22 as substring.

Together with 20002501231, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20002531229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001250614 + 10001250615.

It is an arithmetic number, because the mean of its divisors is an integer number (10001250615).

Almost surely, 2^20002501229 is an apocalyptic number.

It is an amenable number.

20002501229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20002501229 is an equidigital number, since it uses as much as digits as its factorization.

20002501229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The spelling of 20002501229 in words is "twenty billion, two million, five hundred one thousand, two hundred twenty-nine".