10111021229 has 2 divisors, whose sum is σ = 10111021230. Its totient is φ = 10111021228.

The previous prime is 10111021189. The next prime is 10111021231. The reversal of 10111021229 is 92212011101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8317075204 + 1793946025 = 91198^2 + 42355^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111021229 - 2⁸ = 10111020973 is a prime.

Together with 10111021231, 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 10111021229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111021259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055510614 + 5055510615.

It is an arithmetic number, because the mean of its divisors is an integer number (5055510615).

Almost surely, 2^10111021229 is an apocalyptic number.

It is an amenable number.

10111021229 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111021229 is an equidigital number, since it uses as much as digits as its factorization.

10111021229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 10111021229 in words is "ten billion, one hundred eleven million, twenty-one thousand, two hundred twenty-nine".