221101130 has 16 divisors (see below), whose sum is σ = 398164680. Its totient is φ = 88399872.

The previous prime is 221101129. The next prime is 221101147. The reversal of 221101130 is 31101122.

It can be written as a sum of positive squares in 4 ways, for example, as 179640409 + 41460721 = 13403^2 + 6439^2 .

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, 28202 + ... + 35178.

Almost surely, 2^221101130 is an apocalyptic number.

221101130 is a deficient number, since it is larger than the sum of its proper divisors (177063550).

221101130 is a wasteful number, since it uses less digits than its factorization.

221101130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10153.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 221101130 is about 14869.4697282721. The cubic root of 221101130 is about 604.6865666957.

Adding to 221101130 its reverse (31101122), we get a palindrome (252202252).

The spelling of 221101130 in words is "two hundred twenty-one million, one hundred one thousand, one hundred thirty".