219229001 has 8 divisors (see below), whose sum is σ = 223203240. Its totient is φ = 215281152.

The previous prime is 219228949. The next prime is 219229013. The reversal of 219229001 is 100922912.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25351225 + 193877776 = 5035^2 + 13924^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-219229001 is a prime.

It is a super-2 number, since 2×219229001² = 96122709758916002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219229061) 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, 10565 + ... + 23453.

It is an arithmetic number, because the mean of its divisors is an integer number (27900405).

Almost surely, 2^219229001 is an apocalyptic number.

It is an amenable number.

219229001 is a deficient number, since it is larger than the sum of its proper divisors (3974239).

219229001 is a wasteful number, since it uses less digits than its factorization.

219229001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13195.

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

The square root of 219229001 is about 14806.3837921351. The cubic root of 219229001 is about 602.9750399220.

The spelling of 219229001 in words is "two hundred nineteen million, two hundred twenty-nine thousand, one".