221145119 has 6 divisors (see below), whose sum is σ = 239465016. Its totient is φ = 204133800.

The previous prime is 221145109. The next prime is 221145137. The reversal of 221145119 is 911541122.

It is not a de Polignac number, because 221145119 - 2¹² = 221141023 is a prime.

It is a super-2 number, since 2×221145119² = 97810327315048322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221145109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 654107 + ... + 654444.

It is an arithmetic number, because the mean of its divisors is an integer number (39910836).

Almost surely, 2^221145119 is an apocalyptic number.

221145119 is a deficient number, since it is larger than the sum of its proper divisors (18319897).

221145119 is a wasteful number, since it uses less digits than its factorization.

221145119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308577 (or 1308564 counting only the distinct ones).

The product of its digits is 720, while the sum is 26.

The square root of 221145119 is about 14870.9488264872. The cubic root of 221145119 is about 604.7266656820.

The spelling of 221145119 in words is "two hundred twenty-one million, one hundred forty-five thousand, one hundred nineteen".