3402205421421 has 4 divisors (see below), whose sum is σ = 4536273895232. Its totient is φ = 2268136947612.

The previous prime is 3402205421399. The next prime is 3402205421437. The reversal of 3402205421421 is 1241245022043.

It is a happy number.

3402205421421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3402205421421 - 2⁹ = 3402205420909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3402205421521) 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, 567034236901 + ... + 567034236906.

It is an arithmetic number, because the mean of its divisors is an integer number (1134068473808).

Almost surely, 2^{3402205421421} is an apocalyptic number.

It is an amenable number.

3402205421421 is a deficient number, since it is larger than the sum of its proper divisors (1134068473811).

3402205421421 is a wasteful number, since it uses less digits than its factorization.

3402205421421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134068473810.

The product of its (nonzero) digits is 15360, while the sum is 30.

The spelling of 3402205421421 in words is "three trillion, four hundred two billion, two hundred five million, four hundred twenty-one thousand, four hundred twenty-one".