2211221301013 has 4 divisors (see below), whose sum is σ = 2232689469088. Its totient is φ = 2189753132940.

The previous prime is 2211221301011. The next prime is 2211221301043. The reversal of 2211221301013 is 3101031221122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2211221301013 - 2¹ = 2211221301011 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 (2211221301011) 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, 10734083883 + ... + 10734084088.

It is an arithmetic number, because the mean of its divisors is an integer number (558172367272).

Almost surely, 2^{2211221301013} is an apocalyptic number.

It is an amenable number.

2211221301013 is a deficient number, since it is larger than the sum of its proper divisors (21468168075).

2211221301013 is a wasteful number, since it uses less digits than its factorization.

2211221301013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21468168074.

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

Adding to 2211221301013 its reverse (3101031221122), we get a palindrome (5312252522135).

The spelling of 2211221301013 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, three hundred one thousand, thirteen".