3113220001021 has 4 divisors (see below), whose sum is σ = 3352698462652. Its totient is φ = 2873741539392.

The previous prime is 3113220000973. The next prime is 3113220001037. The reversal of 3113220001021 is 1201000223113.

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 211495132996 + 2901724868025 = 459886^2 + 1703445^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113220001021 - 2⁷ = 3113220000893 is a prime.

It is a super-3 number, since 3×3113220001021³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3113220000986 and 3113220001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3113220001061) 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, 119739230796 + ... + 119739230821.

It is an arithmetic number, because the mean of its divisors is an integer number (838174615663).

Almost surely, 2^{3113220001021} is an apocalyptic number.

It is an amenable number.

3113220001021 is a deficient number, since it is larger than the sum of its proper divisors (239478461631).

3113220001021 is a wasteful number, since it uses less digits than its factorization.

3113220001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239478461630.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 3113220001021 its reverse (1201000223113), we get a palindrome (4314220224134).

The spelling of 3113220001021 in words is "three trillion, one hundred thirteen billion, two hundred twenty million, one thousand, twenty-one".