1400440421101 has 2 divisors, whose sum is σ = 1400440421102. Its totient is φ = 1400440421100.

The previous prime is 1400440421071. The next prime is 1400440421111. The reversal of 1400440421101 is 1011240440041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 831470422500 + 568969998601 = 911850^2 + 754301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400440421101 - 2¹⁹ = 1400439896813 is a prime.

It is a super-2 number, since 2×1400440421101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1400440421111) 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 as a sum of consecutive naturals, namely, 700220210550 + 700220210551.

It is an arithmetic number, because the mean of its divisors is an integer number (700220210551).

Almost surely, 2^{1400440421101} is an apocalyptic number.

It is an amenable number.

1400440421101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400440421101 is an equidigital number, since it uses as much as digits as its factorization.

1400440421101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 1400440421101 its reverse (1011240440041), we get a palindrome (2411680861142).

The spelling of 1400440421101 in words is "one trillion, four hundred billion, four hundred forty million, four hundred twenty-one thousand, one hundred one".