401222222 has 8 divisors (see below), whose sum is σ = 601925016. Its totient is φ = 200580552.

The previous prime is 401222201. The next prime is 401222233. The reversal of 401222222 is 222222104.

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

401222222 is a modest number, since divided by 22222 gives 4012 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 401222222.

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, 8588 + ... + 29600.

It is an arithmetic number, because the mean of its divisors is an integer number (75240627).

Almost surely, 2^401222222 is an apocalyptic number.

401222222 is a deficient number, since it is larger than the sum of its proper divisors (200702794).

401222222 is a wasteful number, since it uses less digits than its factorization.

401222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30562.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 401222222 is about 20030.5322445511. The cubic root of 401222222 is about 737.5559873995. Note that the first 3 decimals are identical.

Adding to 401222222 its reverse (222222104), we get a palindrome (623444326).

The spelling of 401222222 in words is "four hundred one million, two hundred twenty-two thousand, two hundred twenty-two".