2110221629 has 4 divisors (see below), whose sum is σ = 2167254684. Its totient is φ = 2053188576.

The previous prime is 2110221613. The next prime is 2110221683. The reversal of 2110221629 is 9261220112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1817743225 + 292478404 = 42635^2 + 17102^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110221629 - 2⁴ = 2110221613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2110221598 and 2110221607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110221329) 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, 28516472 + ... + 28516545.

It is an arithmetic number, because the mean of its divisors is an integer number (541813671).

Almost surely, 2^2110221629 is an apocalyptic number.

It is an amenable number.

2110221629 is a deficient number, since it is larger than the sum of its proper divisors (57033055).

2110221629 is an equidigital number, since it uses as much as digits as its factorization.

2110221629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57033054.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 2110221629 is about 45937.1486816498. The cubic root of 2110221629 is about 1282.6535181209.

The spelling of 2110221629 in words is "two billion, one hundred ten million, two hundred twenty-one thousand, six hundred twenty-nine".