401222211 has 8 divisors (see below), whose sum is σ = 576114000. Its totient is φ = 246905952.

The previous prime is 401222201. The next prime is 401222233. The reversal of 401222211 is 112222104.

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

It is not a de Polignac number, because 401222211 - 2¹¹ = 401220163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (401222201) 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, 5143836 + ... + 5143913.

It is an arithmetic number, because the mean of its divisors is an integer number (72014250).

Almost surely, 2^401222211 is an apocalyptic number.

401222211 is a deficient number, since it is larger than the sum of its proper divisors (174891789).

401222211 is a wasteful number, since it uses less digits than its factorization.

401222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10287765.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 401222211 is about 20030.5319699702. The cubic root of 401222211 is about 737.5559806592. Note that the first 3 decimals are identical.

Adding to 401222211 its reverse (112222104), we get a palindrome (513444315).

The spelling of 401222211 in words is "four hundred one million, two hundred twenty-two thousand, two hundred eleven".