1220021013033 has 48 divisors (see below), whose sum is σ = 1858244718720. Its totient is φ = 769830158592.

The previous prime is 1220021013011. The next prime is 1220021013047. The reversal of 1220021013033 is 3303101200221.

It is not a de Polignac number, because 1220021013033 - 2²² = 1220016818729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220021012997 and 1220021013015.

It is not an unprimeable number, because it can be changed into a prime (1220021013083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7647741 + ... + 7805637.

It is an arithmetic number, because the mean of its divisors is an integer number (38713431640).

Almost surely, 2^{1220021013033} is an apocalyptic number.

It is an amenable number.

1220021013033 is a deficient number, since it is larger than the sum of its proper divisors (638223705687).

1220021013033 is a wasteful number, since it uses less digits than its factorization.

1220021013033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158318 (or 158315 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1220021013033 its reverse (3303101200221), we get a palindrome (4523122213254).

The spelling of 1220021013033 in words is "one trillion, two hundred twenty billion, twenty-one million, thirteen thousand, thirty-three".