100120229 has 4 divisors (see below), whose sum is σ = 109222080. Its totient is φ = 91018380.

The previous prime is 100120213. The next prime is 100120231. The reversal of 100120229 is 922021001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 922021001 = 11 ⋅83820091.

It is a cyclic number.

It is not a de Polignac number, because 100120229 - 2⁴ = 100120213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550909 + ... + 4550930.

It is an arithmetic number, because the mean of its divisors is an integer number (27305520).

Almost surely, 2^100120229 is an apocalyptic number.

It is an amenable number.

100120229 is a deficient number, since it is larger than the sum of its proper divisors (9101851).

100120229 is an equidigital number, since it uses as much as digits as its factorization.

100120229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9101850.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 100120229 is about 10006.0096442088. The cubic root of 100120229 is about 464.3448267232.

The spelling of 100120229 in words is "one hundred million, one hundred twenty thousand, two hundred twenty-nine".