2211230011213 has 4 divisors (see below), whose sum is σ = 2211274687900. Its totient is φ = 2211185334528.

The previous prime is 2211230011169. The next prime is 2211230011261. The reversal of 2211230011213 is 3121100321122.

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 1445181452649 + 766048558564 = 1202157^2 + 875242^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211230011213 - 2²¹ = 2211227914061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211230011273) 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, 22264020 + ... + 22363117.

It is an arithmetic number, because the mean of its divisors is an integer number (552818671975).

Almost surely, 2^{2211230011213} is an apocalyptic number.

It is an amenable number.

2211230011213 is a deficient number, since it is larger than the sum of its proper divisors (44676687).

2211230011213 is an equidigital number, since it uses as much as digits as its factorization.

2211230011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44676686.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2211230011213 its reverse (3121100321122), we get a palindrome (5332330332335).

The spelling of 2211230011213 in words is "two trillion, two hundred eleven billion, two hundred thirty million, eleven thousand, two hundred thirteen".