202102111229 has 2 divisors, whose sum is σ = 202102111230. Its totient is φ = 202102111228.

The previous prime is 202102111223. The next prime is 202102111241. The reversal of 202102111229 is 922111201202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201991819225 + 110292004 = 449435^2 + 10502^2 .

It is a cyclic number.

It is not a de Polignac number, because 202102111229 - 2²⁸ = 201833675773 is a prime.

It is a super-3 number, since 3×202102111229³ (a number of 35 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202102111223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101051055614 + 101051055615.

It is an arithmetic number, because the mean of its divisors is an integer number (101051055615).

Almost surely, 2^202102111229 is an apocalyptic number.

It is an amenable number.

202102111229 is a deficient number, since it is larger than the sum of its proper divisors (1).

202102111229 is an equidigital number, since it uses as much as digits as its factorization.

202102111229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 202102111229 in words is "two hundred two billion, one hundred two million, one hundred eleven thousand, two hundred twenty-nine".