1220021011133 has 16 divisors (see below), whose sum is σ = 1260692989056. Its totient is φ = 1180006726080.

The previous prime is 1220021011103. The next prime is 1220021011163. The reversal of 1220021011133 is 3311101200221.

It is an interprime number because it is at equal distance from previous prime (1220021011103) and next prime (1220021011163).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220021011133 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 (1220021011103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51778391 + ... + 51801947.

It is an arithmetic number, because the mean of its divisors is an integer number (78793311816).

Almost surely, 2^{1220021011133} is an apocalyptic number.

It is an amenable number.

1220021011133 is a deficient number, since it is larger than the sum of its proper divisors (40671977923).

1220021011133 is a wasteful number, since it uses less digits than its factorization.

1220021011133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37444.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1220021011133 its reverse (3311101200221), we get a palindrome (4531122211354).

The spelling of 1220021011133 in words is "one trillion, two hundred twenty billion, twenty-one million, eleven thousand, one hundred thirty-three".