400340214201 has 4 divisors (see below), whose sum is σ = 533786952272. Its totient is φ = 266893476132.

The previous prime is 400340214199. The next prime is 400340214221. The reversal of 400340214201 is 102412043004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 400340214201 - 2¹ = 400340214199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400340214221) 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, 66723369031 + ... + 66723369036.

It is an arithmetic number, because the mean of its divisors is an integer number (133446738068).

Almost surely, 2^400340214201 is an apocalyptic number.

It is an amenable number.

400340214201 is a deficient number, since it is larger than the sum of its proper divisors (133446738071).

400340214201 is a wasteful number, since it uses less digits than its factorization.

400340214201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133446738070.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 400340214201 its reverse (102412043004), we get a palindrome (502752257205).

The spelling of 400340214201 in words is "four hundred billion, three hundred forty million, two hundred fourteen thousand, two hundred one".