221260029 has 8 divisors (see below), whose sum is σ = 296302560. Its totient is φ = 146862096.

The previous prime is 221260021. The next prime is 221260031. The reversal of 221260029 is 920062122.

221260029 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 not a de Polignac number, because 221260029 - 2³ = 221260021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221259990 and 221260008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221260021) 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, 160347 + ... + 161720.

It is an arithmetic number, because the mean of its divisors is an integer number (37037820).

Almost surely, 2^221260029 is an apocalyptic number.

It is an amenable number.

221260029 is a deficient number, since it is larger than the sum of its proper divisors (75042531).

221260029 is a wasteful number, since it uses less digits than its factorization.

221260029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322299.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 221260029 is about 14874.8118979703. The cubic root of 221260029 is about 604.8313889351.

The spelling of 221260029 in words is "two hundred twenty-one million, two hundred sixty thousand, twenty-nine".