404214204121 has 16 divisors (see below), whose sum is σ = 497519777664. Its totient is φ = 319801521024.

The previous prime is 404214204113. The next prime is 404214204131. The reversal of 404214204121 is 121402412404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 404214204121 - 2³ = 404214204113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404214204131) 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, 1870725 + ... + 2075581.

It is an arithmetic number, because the mean of its divisors is an integer number (31094986104).

Almost surely, 2^404214204121 is an apocalyptic number.

It is an amenable number.

404214204121 is a deficient number, since it is larger than the sum of its proper divisors (93305573543).

404214204121 is a wasteful number, since it uses less digits than its factorization.

404214204121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226560.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 404214204121 its reverse (121402412404), we get a palindrome (525616616525).

The spelling of 404214204121 in words is "four hundred four billion, two hundred fourteen million, two hundred four thousand, one hundred twenty-one".