401225211 has 32 divisors (see below), whose sum is σ = 641286720. Its totient is φ = 246984192.

The previous prime is 401225207. The next prime is 401225269. The reversal of 401225211 is 112522104.

401225211 is a `hidden beast` number, since 401 + 2 + 252 + 11 = 666.

It is not a de Polignac number, because 401225211 - 2² = 401225207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (401225611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16081 + ... + 32573.

It is an arithmetic number, because the mean of its divisors is an integer number (20040210).

Almost surely, 2^401225211 is an apocalyptic number.

401225211 is a deficient number, since it is larger than the sum of its proper divisors (240061509).

401225211 is a wasteful number, since it uses less digits than its factorization.

401225211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16572 (or 16566 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 401225211 is about 20030.6068555099. The cubic root of 401225211 is about 737.5578189277.

Adding to 401225211 its reverse (112522104), we get a palindrome (513747315).

The spelling of 401225211 in words is "four hundred one million, two hundred twenty-five thousand, two hundred eleven".