40130034221 has 12 divisors (see below), whose sum is σ = 41313581172. Its totient is φ = 38966473728.

The previous prime is 40130034169. The next prime is 40130034251. The reversal of 40130034221 is 12243003104.

It can be written as a sum of positive squares in 6 ways, for example, as 594676996 + 39535357225 = 24386^2 + 198835^2 .

It is not a de Polignac number, because 40130034221 - 2⁶ = 40130034157 is a prime.

It is a super-2 number, since 2×40130034221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40130034193 and 40130034202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40130034251) 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 11 ways as a sum of consecutive naturals, for example, 458441 + ... + 538913.

It is an arithmetic number, because the mean of its divisors is an integer number (3442798431).

Almost surely, 2^40130034221 is an apocalyptic number.

It is an amenable number.

40130034221 is a deficient number, since it is larger than the sum of its proper divisors (1183546951).

40130034221 is an frugal number, since it uses more digits than its factorization.

40130034221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80720 (or 80623 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40130034221 its reverse (12243003104), we get a palindrome (52373037325).

The spelling of 40130034221 in words is "forty billion, one hundred thirty million, thirty-four thousand, two hundred twenty-one".