22191029 has 8 divisors (see below), whose sum is σ = 25416000. Its totient is φ = 18979776.

The previous prime is 22191019. The next prime is 22191073. The reversal of 22191029 is 92019122.

It is a happy number.

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 22191029 - 2²⁴ = 5413813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22190989 and 22191007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22191019) 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, 317 + ... + 6669.

It is an arithmetic number, because the mean of its divisors is an integer number (3177000).

Almost surely, 2^22191029 is an apocalyptic number.

It is an amenable number.

22191029 is a deficient number, since it is larger than the sum of its proper divisors (3224971).

22191029 is an equidigital number, since it uses as much as digits as its factorization.

22191029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6859.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 22191029 is about 4710.7355052051. The cubic root of 22191029 is about 281.0126132558.

The spelling of 22191029 in words is "twenty-two million, one hundred ninety-one thousand, twenty-nine".