1220222333 has 4 divisors (see below), whose sum is σ = 1331151648. Its totient is φ = 1109293020.

The previous prime is 1220222317. The next prime is 1220222347. The reversal of 1220222333 is 3332220221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1220222333 - 2⁴ = 1220222317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220222533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55464641 + ... + 55464662.

It is an arithmetic number, because the mean of its divisors is an integer number (332787912).

Almost surely, 2^1220222333 is an apocalyptic number.

It is an amenable number.

1220222333 is a deficient number, since it is larger than the sum of its proper divisors (110929315).

1220222333 is a wasteful number, since it uses less digits than its factorization.

1220222333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110929314.

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

The square root of 1220222333 is about 34931.6809357924. The cubic root of 1220222333 is about 1068.5946358840.

Adding to 1220222333 its reverse (3332220221), we get a palindrome (4552442554).

The spelling of 1220222333 in words is "one billion, two hundred twenty million, two hundred twenty-two thousand, three hundred thirty-three".