3001213450021 has 4 divisors (see below), whose sum is σ = 3002945254092. Its totient is φ = 2999481645952.

The previous prime is 3001213449979. The next prime is 3001213450171. The reversal of 3001213450021 is 1200543121003.

It is a happy number.

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 2340024921796 + 661188528225 = 1529714^2 + 813135^2 .

It is a cyclic number.

It is not a de Polignac number, because 3001213450021 - 2²⁵ = 3001179895589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3001213449974 and 3001213450001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3001213450321) 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, 865899436 + ... + 865902901.

It is an arithmetic number, because the mean of its divisors is an integer number (750736313523).

Almost surely, 2^{3001213450021} is an apocalyptic number.

It is an amenable number.

3001213450021 is a deficient number, since it is larger than the sum of its proper divisors (1731804071).

3001213450021 is a wasteful number, since it uses less digits than its factorization.

3001213450021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731804070.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 3001213450021 its reverse (1200543121003), we get a palindrome (4201756571024).

The spelling of 3001213450021 in words is "three trillion, one billion, two hundred thirteen million, four hundred fifty thousand, twenty-one".