3421022123021 has 4 divisors (see below), whose sum is σ = 3429386480700. Its totient is φ = 3412657765344.

The previous prime is 3421022123011. The next prime is 3421022123027. The reversal of 3421022123021 is 1203212201243.

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 2217898326121 + 1203123796900 = 1489261^2 + 1096870^2 .

It is a cyclic number.

It is not a de Polignac number, because 3421022123021 - 2³⁸ = 3146144216077 is a prime.

It is a super-2 number, since 2×3421022123021² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421022123027) 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, 4182178226 + ... + 4182179043.

It is an arithmetic number, because the mean of its divisors is an integer number (857346620175).

Almost surely, 2^{3421022123021} is an apocalyptic number.

It is an amenable number.

3421022123021 is a deficient number, since it is larger than the sum of its proper divisors (8364357679).

3421022123021 is an equidigital number, since it uses as much as digits as its factorization.

3421022123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8364357678.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 3421022123021 its reverse (1203212201243), we get a palindrome (4624234324264).

The spelling of 3421022123021 in words is "three trillion, four hundred twenty-one billion, twenty-two million, one hundred twenty-three thousand, twenty-one".