221011130120 has 32 divisors (see below), whose sum is σ = 542481865920. Its totient is φ = 80367683520.

The previous prime is 221011130029. The next prime is 221011130213. The reversal of 221011130120 is 21031110122.

It is a junction number, because it is equal to n+sod(n) for n = 221011130095 and 221011130104.

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, 251148572 + ... + 251149451.

It is an arithmetic number, because the mean of its divisors is an integer number (16952558310).

Almost surely, 2^221011130120 is an apocalyptic number.

221011130120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221011130120 is an abundant number, since it is smaller than the sum of its proper divisors (321470735800).

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

221011130120 is a wasteful number, since it uses less digits than its factorization.

221011130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502298045 (or 502298041 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 221011130120 its reverse (21031110122), we get a palindrome (242042240242).

The spelling of 221011130120 in words is "two hundred twenty-one billion, eleven million, one hundred thirty thousand, one hundred twenty".