221102021011120 has 20 divisors (see below), whose sum is σ = 514062198851040. Its totient is φ = 88440808404416.

The previous prime is 221102021011019. The next prime is 221102021011139. The reversal of 221102021011120 is 21110120201122.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×221102021011120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 221102021011094 and 221102021011103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381887631240 + ... + 1381887631399.

It is an arithmetic number, because the mean of its divisors is an integer number (25703109942552).

Almost surely, 2^{221102021011120} is an apocalyptic number.

221102021011120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221102021011120 is an abundant number, since it is smaller than the sum of its proper divisors (292960177839920).

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

221102021011120 is a wasteful number, since it uses less digits than its factorization.

221102021011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763775262652 (or 2763775262646 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221102021011120 its reverse (21110120201122), we get a palindrome (242212141212242).

The spelling of 221102021011120 in words is "two hundred twenty-one trillion, one hundred two billion, twenty-one million, eleven thousand, one hundred twenty".