1220220033 has 32 divisors (see below), whose sum is σ = 1817562240. Its totient is φ = 723640320.

The previous prime is 1220220031. The next prime is 1220220049. The reversal of 1220220033 is 3300220221.

It is not a de Polignac number, because 1220220033 - 2¹ = 1220220031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220219994 and 1220220021.

It is not an unprimeable number, because it can be changed into a prime (1220220031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 503641 + ... + 506057.

It is an arithmetic number, because the mean of its divisors is an integer number (56798820).

Almost surely, 2^1220220033 is an apocalyptic number.

It is an amenable number.

1220220033 is a deficient number, since it is larger than the sum of its proper divisors (597342207).

1220220033 is a wasteful number, since it uses less digits than its factorization.

1220220033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2977.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1220220033 is about 34931.6480143723. The cubic root of 1220220033 is about 1068.5939644847.

Adding to 1220220033 its reverse (3300220221), we get a palindrome (4520440254).

The spelling of 1220220033 in words is "one billion, two hundred twenty million, two hundred twenty thousand, thirty-three".