3401043220421 has 16 divisors (see below), whose sum is σ = 4463433346560. Its totient is φ = 2510681255280.

The previous prime is 3401043220403. The next prime is 3401043220439. The reversal of 3401043220421 is 1240223401043.

It is an interprime number because it is at equal distance from previous prime (3401043220403) and next prime (3401043220439).

It is not a de Polignac number, because 3401043220421 - 2⁶ = 3401043220357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3401043220021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162350971 + ... + 1162353896.

It is an arithmetic number, because the mean of its divisors is an integer number (278964584160).

Almost surely, 2^{3401043220421} is an apocalyptic number.

It is an amenable number.

3401043220421 is a deficient number, since it is larger than the sum of its proper divisors (1062390126139).

3401043220421 is a wasteful number, since it uses less digits than its factorization.

3401043220421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324704904.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 3401043220421 its reverse (1240223401043), we get a palindrome (4641266621464).

The spelling of 3401043220421 in words is "three trillion, four hundred one billion, forty-three million, two hundred twenty thousand, four hundred twenty-one".