201401404221 has 32 divisors (see below), whose sum is σ = 278151340032. Its totient is φ = 129490159680.

The previous prime is 201401404213. The next prime is 201401404229. The reversal of 201401404221 is 122404104102.

It is an interprime number because it is at equal distance from previous prime (201401404213) and next prime (201401404229).

It is not a de Polignac number, because 201401404221 - 2³ = 201401404213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201401404229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36135991 + ... + 36141563.

It is an arithmetic number, because the mean of its divisors is an integer number (8692229376).

Almost surely, 2^201401404221 is an apocalyptic number.

It is an amenable number.

201401404221 is a deficient number, since it is larger than the sum of its proper divisors (76749935811).

201401404221 is a wasteful number, since it uses less digits than its factorization.

201401404221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6873.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 201401404221 its reverse (122404104102), we get a palindrome (323805508323).

The spelling of 201401404221 in words is "two hundred one billion, four hundred one million, four hundred four thousand, two hundred twenty-one".