1340200221 has 8 divisors (see below), whose sum is σ = 1828490400. Its totient is φ = 872688432.

The previous prime is 1340200177. The next prime is 1340200223. The reversal of 1340200221 is 1220020431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1340200221 - 2¹⁰ = 1340199197 is a prime.

It is a super-2 number, since 2×1340200221² = 3592273264736897682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1340200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340200223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5194446 + ... + 5194703.

It is an arithmetic number, because the mean of its divisors is an integer number (228561300).

Almost surely, 2^1340200221 is an apocalyptic number.

It is an amenable number.

1340200221 is a deficient number, since it is larger than the sum of its proper divisors (488290179).

1340200221 is a wasteful number, since it uses less digits than its factorization.

1340200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10389195.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1340200221 is about 36608.7451437495. The cubic root of 1340200221 is about 1102.5286787651.

Adding to 1340200221 its reverse (1220020431), we get a palindrome (2560220652).

The spelling of 1340200221 in words is "one billion, three hundred forty million, two hundred thousand, two hundred twenty-one".