40200121201 has 4 divisors (see below), whose sum is σ = 41180612004. Its totient is φ = 39219630400.

The previous prime is 40200121123. The next prime is 40200121219. The reversal of 40200121201 is 10212100204.

It is a happy number.

40200121201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22123587600 + 18076533601 = 148740^2 + 134449^2 .

It is a cyclic number.

It is not a de Polignac number, because 40200121201 - 2¹⁵ = 40200088433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40200125201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490245340 + ... + 490245421.

It is an arithmetic number, because the mean of its divisors is an integer number (10295153001).

Almost surely, 2^40200121201 is an apocalyptic number.

40200121201 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40200121201 is a deficient number, since it is larger than the sum of its proper divisors (980490803).

40200121201 is an equidigital number, since it uses as much as digits as its factorization.

40200121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980490802.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 40200121201 its reverse (10212100204), we get a palindrome (50412221405).

The spelling of 40200121201 in words is "forty billion, two hundred million, one hundred twenty-one thousand, two hundred one".