1220133133321 has 16 divisors (see below), whose sum is σ = 1250298815040. Its totient is φ = 1190049981120.

The previous prime is 1220133133231. The next prime is 1220133133333. The reversal of 1220133133321 is 1233313310221.

It is a cyclic number.

It is not a de Polignac number, because 1220133133321 - 2²¹ = 1220131036169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220133163321) 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, 125355571 + ... + 125365303.

It is an arithmetic number, because the mean of its divisors is an integer number (78143675940).

Almost surely, 2^{1220133133321} is an apocalyptic number.

It is an amenable number.

1220133133321 is a deficient number, since it is larger than the sum of its proper divisors (30165681719).

1220133133321 is a wasteful number, since it uses less digits than its factorization.

1220133133321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13656.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1220133133321 its reverse (1233313310221), we get a palindrome (2453446443542).

The spelling of 1220133133321 in words is "one trillion, two hundred twenty billion, one hundred thirty-three million, one hundred thirty-three thousand, three hundred twenty-one".