201401400021 has 8 divisors (see below), whose sum is σ = 271303604544. Its totient is φ = 132883397760.

The previous prime is 201401400001. The next prime is 201401400047. The reversal of 201401400021 is 120004104102.

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

It is not a de Polignac number, because 201401400021 - 2⁶ = 201401399957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201401400001) 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, 346050225 + ... + 346050806.

It is an arithmetic number, because the mean of its divisors is an integer number (33912950568).

Almost surely, 2^201401400021 is an apocalyptic number.

It is an amenable number.

201401400021 is a deficient number, since it is larger than the sum of its proper divisors (69902204523).

201401400021 is an equidigital number, since it uses as much as digits as its factorization.

201401400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692101131.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201401400021 its reverse (120004104102), we get a palindrome (321405504123).

The spelling of 201401400021 in words is "two hundred one billion, four hundred one million, four hundred thousand, twenty-one".