1220111301133 has 2 divisors, whose sum is σ = 1220111301134. Its totient is φ = 1220111301132.

The previous prime is 1220111301113. The next prime is 1220111301163. The reversal of 1220111301133 is 3311031110221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 981720309124 + 238390992009 = 990818^2 + 488253^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220111301133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220111301133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220111301113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610055650566 + 610055650567.

It is an arithmetic number, because the mean of its divisors is an integer number (610055650567).

Almost surely, 2^{1220111301133} is an apocalyptic number.

It is an amenable number.

1220111301133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220111301133 is an equidigital number, since it uses as much as digits as its factorization.

1220111301133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1220111301133 its reverse (3311031110221), we get a palindrome (4531142411354).

The spelling of 1220111301133 in words is "one trillion, two hundred twenty billion, one hundred eleven million, three hundred one thousand, one hundred thirty-three".