221120130 has 64 divisors (see below), whose sum is σ = 661644288. Its totient is φ = 45946560.

The previous prime is 221120129. The next prime is 221120149. The reversal of 221120130 is 31021122.

It is a super-2 number, since 2×221120130² = 97788223782433800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45552 + ... + 50171.

It is an arithmetic number, because the mean of its divisors is an integer number (10338192).

Almost surely, 2^221120130 is an apocalyptic number.

221120130 is an abundant number, since it is smaller than the sum of its proper divisors (440524158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221120130 is a wasteful number, since it uses less digits than its factorization.

221120130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95751.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 221120130 is about 14870.1086075388. The cubic root of 221120130 is about 604.7038871495.

Adding to 221120130 its reverse (31021122), we get a palindrome (252141252).

The spelling of 221120130 in words is "two hundred twenty-one million, one hundred twenty thousand, one hundred thirty".