10111220929 has 2 divisors, whose sum is σ = 10111220930. Its totient is φ = 10111220928.

The previous prime is 10111220897. The next prime is 10111221007. The reversal of 10111220929 is 92902211101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5235969600 + 4875251329 = 72360^2 + 69823^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111220929 - 2⁵ = 10111220897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10111220897 and 10111220906.

It is not a weakly prime, because it can be changed into another prime (10111226929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055610464 + 5055610465.

It is an arithmetic number, because the mean of its divisors is an integer number (5055610465).

Almost surely, 2^10111220929 is an apocalyptic number.

It is an amenable number.

10111220929 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111220929 is an equidigital number, since it uses as much as digits as its factorization.

10111220929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 10111220929 in words is "ten billion, one hundred eleven million, two hundred twenty thousand, nine hundred twenty-nine".