1220131121233 has 8 divisors (see below), whose sum is σ = 1226867803200. Its totient is φ = 1213400493360.

The previous prime is 1220131121213. The next prime is 1220131121257. The reversal of 1220131121233 is 3321211310221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220131121233 - 2¹³ = 1220131113041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220131121203) 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 7 ways as a sum of consecutive naturals, for example, 1109038 + ... + 1915783.

It is an arithmetic number, because the mean of its divisors is an integer number (153358475400).

Almost surely, 2^{1220131121233} is an apocalyptic number.

It is an amenable number.

1220131121233 is a deficient number, since it is larger than the sum of its proper divisors (6736681967).

1220131121233 is a wasteful number, since it uses less digits than its factorization.

1220131121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027047.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1220131121233 its reverse (3321211310221), we get a palindrome (4541342431454).

The spelling of 1220131121233 in words is "one trillion, two hundred twenty billion, one hundred thirty-one million, one hundred twenty-one thousand, two hundred thirty-three".