1220021033 has 8 divisors (see below), whose sum is σ = 1521065280. Its totient is φ = 950665680.

The previous prime is 1220021029. The next prime is 1220021059. The reversal of 1220021033 is 3301200221.

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 1220021033 - 2² = 1220021029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220020999 and 1220021017.

It is not an unprimeable number, because it can be changed into a prime (1220021083) 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, 7922138 + ... + 7922291.

It is an arithmetic number, because the mean of its divisors is an integer number (190133160).

Almost surely, 2^1220021033 is an apocalyptic number.

It is an amenable number.

1220021033 is a deficient number, since it is larger than the sum of its proper divisors (301044247).

1220021033 is a wasteful number, since it uses less digits than its factorization.

1220021033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15844447.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1220021033 is about 34928.7994783674. The cubic root of 1220021033 is about 1068.5358706562.

Adding to 1220021033 its reverse (3301200221), we get a palindrome (4521221254).

It can be divided in two parts, 12200 and 21033, that added together give a palindrome (33233).

The spelling of 1220021033 in words is "one billion, two hundred twenty million, twenty-one thousand, thirty-three".