121100029 has 2 divisors, whose sum is σ = 121100030. Its totient is φ = 121100028.

The previous prime is 121100017. The next prime is 121100039. The reversal of 121100029 is 920001121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79174404 + 41925625 = 8898^2 + 6475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121100029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121099985 and 121100021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121100039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550014 + 60550015.

It is an arithmetic number, because the mean of its divisors is an integer number (60550015).

Almost surely, 2^121100029 is an apocalyptic number.

It is an amenable number.

121100029 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100029 is an equidigital number, since it uses as much as digits as its factorization.

121100029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 121100029 is about 11004.5458334272. The cubic root of 121100029 is about 494.7450021509.

The spelling of 121100029 in words is "one hundred twenty-one million, one hundred thousand, twenty-nine".