2111221233113 has 2 divisors, whose sum is σ = 2111221233114. Its totient is φ = 2111221233112.

The previous prime is 2111221233109. The next prime is 2111221233119. The reversal of 2111221233113 is 3113321221112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1374925095184 + 736296137929 = 1172572^2 + 858077^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111221233113 - 2² = 2111221233109 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111221233119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055610616556 + 1055610616557.

It is an arithmetic number, because the mean of its divisors is an integer number (1055610616557).

Almost surely, 2^{2111221233113} is an apocalyptic number.

It is an amenable number.

2111221233113 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111221233113 is an equidigital number, since it uses as much as digits as its factorization.

2111221233113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

Adding to 2111221233113 its reverse (3113321221112), we get a palindrome (5224542454225).

The spelling of 2111221233113 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred thirty-three thousand, one hundred thirteen".