401222210 has 32 divisors (see below), whose sum is σ = 730570752. Its totient is φ = 158639040.

The previous prime is 401222201. The next prime is 401222233. The reversal of 401222210 is 12222104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547004 + ... + 547736.

It is an arithmetic number, because the mean of its divisors is an integer number (22830336).

Almost surely, 2^401222210 is an apocalyptic number.

401222210 is a deficient number, since it is larger than the sum of its proper divisors (329348542).

401222210 is a wasteful number, since it uses less digits than its factorization.

401222210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 401222210 is about 20030.5319450084. The cubic root of 401222210 is about 737.5559800464. Note that the first 3 decimals are identical.

Adding to 401222210 its reverse (12222104), we get a palindrome (413444314).

The spelling of 401222210 in words is "four hundred one million, two hundred twenty-two thousand, two hundred ten".