221312220033 has 8 divisors (see below), whose sum is σ = 301361321088. Its totient is φ = 144402299504.

The previous prime is 221312220007. The next prime is 221312220067. The reversal of 221312220033 is 330022213122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221312220033 - 2³² = 217017252737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221312219991 and 221312220009.

It is not an unprimeable number, because it can be changed into a prime (221312220083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784794966 + ... + 784795247.

It is an arithmetic number, because the mean of its divisors is an integer number (37670165136).

Almost surely, 2^221312220033 is an apocalyptic number.

It is an amenable number.

221312220033 is a deficient number, since it is larger than the sum of its proper divisors (80049101055).

221312220033 is a wasteful number, since it uses less digits than its factorization.

221312220033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569590263.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 221312220033 its reverse (330022213122), we get a palindrome (551334433155).

The spelling of 221312220033 in words is "two hundred twenty-one billion, three hundred twelve million, two hundred twenty thousand, thirty-three".