221429035 has 8 divisors (see below), whose sum is σ = 266125680. Its totient is φ = 176869344.

The previous prime is 221428997. The next prime is 221429041. The reversal of 221429035 is 530924122.

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 221429035 - 2²¹ = 219331883 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221428994 and 221429012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30645 + ... + 37174.

It is an arithmetic number, because the mean of its divisors is an integer number (33265710).

Almost surely, 2^221429035 is an apocalyptic number.

221429035 is a deficient number, since it is larger than the sum of its proper divisors (44696645).

221429035 is an equidigital number, since it uses as much as digits as its factorization.

221429035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68477.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 221429035 is about 14880.4917593472. The cubic root of 221429035 is about 604.9853467298.

The spelling of 221429035 in words is "two hundred twenty-one million, four hundred twenty-nine thousand, thirty-five".