1000254221 has 4 divisors (see below), whose sum is σ = 1052899200. Its totient is φ = 947609244.

The previous prime is 1000254217. The next prime is 1000254251. The reversal of 1000254221 is 1224520001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1000254221 - 2² = 1000254217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1000254221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000254251) 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, 26322461 + ... + 26322498.

It is an arithmetic number, because the mean of its divisors is an integer number (263224800).

Almost surely, 2^1000254221 is an apocalyptic number.

It is an amenable number.

1000254221 is a deficient number, since it is larger than the sum of its proper divisors (52644979).

1000254221 is an equidigital number, since it uses as much as digits as its factorization.

1000254221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52644978.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1000254221 is about 31626.7959331956. The cubic root of 1000254221 is about 1000.0847331534.

Adding to 1000254221 its reverse (1224520001), we get a palindrome (2224774222).

The spelling of 1000254221 in words is "one billion, two hundred fifty-four thousand, two hundred twenty-one".