2021000011229 has 2 divisors, whose sum is σ = 2021000011230. Its totient is φ = 2021000011228.

The previous prime is 2021000011133. The next prime is 2021000011231. The reversal of 2021000011229 is 9221100001202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1719953560900 + 301046450329 = 1311470^2 + 548677^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021000011229 - 2²⁸ = 2020731575773 is a prime.

Together with 2021000011231, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2021000011229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021000011259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010500005614 + 1010500005615.

It is an arithmetic number, because the mean of its divisors is an integer number (1010500005615).

Almost surely, 2^{2021000011229} is an apocalyptic number.

It is an amenable number.

2021000011229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021000011229 is an equidigital number, since it uses as much as digits as its factorization.

2021000011229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 2021000011229 in words is "two trillion, twenty-one billion, eleven thousand, two hundred twenty-nine".