401221006 has 8 divisors (see below), whose sum is σ = 601919784. Its totient is φ = 200581080.

The previous prime is 401220997. The next prime is 401221027. The reversal of 401221006 is 600122104.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12121 + ... + 30811.

It is an arithmetic number, because the mean of its divisors is an integer number (75239973).

Almost surely, 2^401221006 is an apocalyptic number.

401221006 is a deficient number, since it is larger than the sum of its proper divisors (200698778).

401221006 is a wasteful number, since it uses less digits than its factorization.

401221006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29426.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 401221006 is about 20030.5018908663. The cubic root of 401221006 is about 737.5552422854. Note that the first 3 decimals are identical.

The spelling of 401221006 in words is "four hundred one million, two hundred twenty-one thousand, six".