400221555403205 has 8 divisors (see below), whose sum is σ = 480427954205472. Its totient is φ = 320069185841488.

The previous prime is 400221555403183. The next prime is 400221555403253. The reversal of 400221555403205 is 502304555122004.

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

It is a cyclic number.

It is not a de Polignac number, because 400221555403205 - 2²² = 400221551208901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13507293839 + ... + 13507323468.

It is an arithmetic number, because the mean of its divisors is an integer number (60053494275684).

Almost surely, 2^{400221555403205} is an apocalyptic number.

It is an amenable number.

400221555403205 is a deficient number, since it is larger than the sum of its proper divisors (80206398802267).

400221555403205 is a wasteful number, since it uses less digits than its factorization.

400221555403205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27014620275.

The product of its (nonzero) digits is 240000, while the sum is 38.

The spelling of 400221555403205 in words is "four hundred trillion, two hundred twenty-one billion, five hundred fifty-five million, four hundred three thousand, two hundred five".