3401142221 has 4 divisors (see below), whose sum is σ = 3419933244. Its totient is φ = 3382351200.

The previous prime is 3401142191. The next prime is 3401142299. The reversal of 3401142221 is 1222411043.

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 590976100 + 2810166121 = 24310^2 + 53011^2 .

It is a cyclic number.

It is not a de Polignac number, because 3401142221 - 2²⁶ = 3334033357 is a prime.

It is a super-3 number, since 3×3401142221³ (a number of 30 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 = 3401142193 and 3401142202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3401142421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9395240 + ... + 9395601.

It is an arithmetic number, because the mean of its divisors is an integer number (854983311).

Almost surely, 2^3401142221 is an apocalyptic number.

It is an amenable number.

3401142221 is a deficient number, since it is larger than the sum of its proper divisors (18791023).

3401142221 is a wasteful number, since it uses less digits than its factorization.

3401142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18791022.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3401142221 is about 58319.3125902561. The cubic root of 3401142221 is about 1503.8629647585.

Adding to 3401142221 its reverse (1222411043), we get a palindrome (4623553264).

The spelling of 3401142221 in words is "three billion, four hundred one million, one hundred forty-two thousand, two hundred twenty-one".