3402140212421 has 8 divisors (see below), whose sum is σ = 3408087513600. Its totient is φ = 3396196869120.

The previous prime is 3402140212417. The next prime is 3402140212423. The reversal of 3402140212421 is 1242120412043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3402140212421 - 2² = 3402140212417 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 (3402140212423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733826 + ... + 2709756.

It is an arithmetic number, because the mean of its divisors is an integer number (426010939200).

Almost surely, 2^{3402140212421} is an apocalyptic number.

It is an amenable number.

3402140212421 is a deficient number, since it is larger than the sum of its proper divisors (5947301179).

3402140212421 is a wasteful number, since it uses less digits than its factorization.

3402140212421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978939.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 3402140212421 its reverse (1242120412043), we get a palindrome (4644260624464).

The spelling of 3402140212421 in words is "three trillion, four hundred two billion, one hundred forty million, two hundred twelve thousand, four hundred twenty-one".