401042201221 has 8 divisors (see below), whose sum is σ = 401534945280. Its totient is φ = 400549679088.

The previous prime is 401042201101. The next prime is 401042201243. The reversal of 401042201221 is 122102240104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401042201221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401042201621) 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, 3717180 + ... + 3823546.

It is an arithmetic number, because the mean of its divisors is an integer number (50191868160).

Almost surely, 2^401042201221 is an apocalyptic number.

It is an amenable number.

401042201221 is a deficient number, since it is larger than the sum of its proper divisors (492744059).

401042201221 is a wasteful number, since it uses less digits than its factorization.

401042201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110963.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 401042201221 its reverse (122102240104), we get a palindrome (523144441325).

The spelling of 401042201221 in words is "four hundred one billion, forty-two million, two hundred one thousand, two hundred twenty-one".