1220222133133 has 4 divisors (see below), whose sum is σ = 1220974893628. Its totient is φ = 1219469372640.

The previous prime is 1220222133107. The next prime is 1220222133157. The reversal of 1220222133133 is 3313312220221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 343493282889 + 876728850244 = 586083^2 + 936338^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220222133133 - 2⁹ = 1220222132621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220222133098 and 1220222133107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220222133233) 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, 376377816 + ... + 376381057.

It is an arithmetic number, because the mean of its divisors is an integer number (305243723407).

Almost surely, 2^{1220222133133} is an apocalyptic number.

It is an amenable number.

1220222133133 is a deficient number, since it is larger than the sum of its proper divisors (752760495).

1220222133133 is an equidigital number, since it uses as much as digits as its factorization.

1220222133133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752760494.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1220222133133 its reverse (3313312220221), we get a palindrome (4533534353354).

The spelling of 1220222133133 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred thirty-three thousand, one hundred thirty-three".