1401430414221 has 6 divisors (see below), whose sum is σ = 2024288376110. Its totient is φ = 934286942808.

The previous prime is 1401430414199. The next prime is 1401430414277. The reversal of 1401430414221 is 1224140341041.

1401430414221 is a `hidden beast` number, since 1 + 4 + 0 + 1 + 430 + 4 + 1 + 4 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1196805368196 + 204625046025 = 1093986^2 + 452355^2 .

It is not a de Polignac number, because 1401430414221 - 2⁷ = 1401430414093 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 (1401430413221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77857245226 + ... + 77857245243.

Almost surely, 2^{1401430414221} is an apocalyptic number.

It is an amenable number.

1401430414221 is a deficient number, since it is larger than the sum of its proper divisors (622857961889).

1401430414221 is a wasteful number, since it uses less digits than its factorization.

1401430414221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155714490475 (or 155714490472 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1401430414221 its reverse (1224140341041), we get a palindrome (2625570755262).

The spelling of 1401430414221 in words is "one trillion, four hundred one billion, four hundred thirty million, four hundred fourteen thousand, two hundred twenty-one".