211121029 has 8 divisors (see below), whose sum is σ = 241388928. Its totient is φ = 180880080.

The previous prime is 211121021. The next prime is 211121047. The reversal of 211121029 is 920121112.

It is a happy number.

211121029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211121029 - 2³ = 211121021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211120997 and 211121015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14544 + ... + 25174.

It is an arithmetic number, because the mean of its divisors is an integer number (30173616).

Almost surely, 2^211121029 is an apocalyptic number.

It is an amenable number.

211121029 is a deficient number, since it is larger than the sum of its proper divisors (30267899).

211121029 is a wasteful number, since it uses less digits than its factorization.

211121029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13475.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 211121029 is about 14530.0044390909. The cubic root of 211121029 is about 595.4479868883.

The spelling of 211121029 in words is "two hundred eleven million, one hundred twenty-one thousand, twenty-nine".