221233214020 has 96 divisors (see below), whose sum is σ = 583969010688. Its totient is φ = 68526922752.

The previous prime is 221233214003. The next prime is 221233214053. The reversal of 221233214020 is 20412332122.

It is a junction number, because it is equal to n+sod(n) for n = 221233213982 and 221233214000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1207617 + ... + 1378696.

It is an arithmetic number, because the mean of its divisors is an integer number (6083010528).

Almost surely, 2^221233214020 is an apocalyptic number.

221233214020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221233214020 is an abundant number, since it is smaller than the sum of its proper divisors (362735796668).

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

221233214020 is a wasteful number, since it uses less digits than its factorization.

221233214020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586389 (or 2586387 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 221233214020 its reverse (20412332122), we get a palindrome (241645546142).

The spelling of 221233214020 in words is "two hundred twenty-one billion, two hundred thirty-three million, two hundred fourteen thousand, twenty".