221232233000 has 64 divisors (see below), whose sum is σ = 520366176720. Its totient is φ = 88034304000.

The previous prime is 221232232999. The next prime is 221232233011. The reversal of 221232233000 is 332232122.

It can be written as a sum of positive squares in 8 ways, for example, as 225060004 + 221007172996 = 15002^2 + 470114^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380141 + ... + 766140.

Almost surely, 2^221232233000 is an apocalyptic number.

221232233000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221232233000 is an abundant number, since it is smaller than the sum of its proper divisors (299133943720).

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

221232233000 is a wasteful number, since it uses less digits than its factorization.

221232233000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146495 (or 1146481 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 221232233000 its reverse (332232122), we get a palindrome (221564465122).

The spelling of 221232233000 in words is "two hundred twenty-one billion, two hundred thirty-two million, two hundred thirty-three thousand".