100011121229 has 2 divisors, whose sum is σ = 100011121230. Its totient is φ = 100011121228.

The previous prime is 100011121219. The next prime is 100011121241. The reversal of 100011121229 is 922121110001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90309265225 + 9701856004 = 300515^2 + 98498^2 .

It is a cyclic number.

It is not a de Polignac number, because 100011121229 - 2⁴ = 100011121213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100011121229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100011121219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005560614 + 50005560615.

It is an arithmetic number, because the mean of its divisors is an integer number (50005560615).

Almost surely, 2^100011121229 is an apocalyptic number.

It is an amenable number.

100011121229 is a deficient number, since it is larger than the sum of its proper divisors (1).

100011121229 is an equidigital number, since it uses as much as digits as its factorization.

100011121229 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 100011121229 in words is "one hundred billion, eleven million, one hundred twenty-one thousand, two hundred twenty-nine".