2113222301021 has 4 divisors (see below), whose sum is σ = 2275777862652. Its totient is φ = 1950666739392.

The previous prime is 2113222300997. The next prime is 2113222301119. The reversal of 2113222301021 is 1201032223112.

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 317488298521 + 1795734002500 = 563461^2 + 1340050^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113222301021 - 2²⁶ = 2113155192157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2113222300984 and 2113222301002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113222303021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81277780796 + ... + 81277780821.

It is an arithmetic number, because the mean of its divisors is an integer number (568944465663).

Almost surely, 2^{2113222301021} is an apocalyptic number.

It is an amenable number.

2113222301021 is a deficient number, since it is larger than the sum of its proper divisors (162555561631).

2113222301021 is a wasteful number, since it uses less digits than its factorization.

2113222301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162555561630.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2113222301021 its reverse (1201032223112), we get a palindrome (3314254524133).

The spelling of 2113222301021 in words is "two trillion, one hundred thirteen billion, two hundred twenty-two million, three hundred one thousand, twenty-one".