401122651 has 4 divisors (see below), whose sum is σ = 407921400. Its totient is φ = 394323904.

The previous prime is 401122627. The next prime is 401122703. The reversal of 401122651 is 156221104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 401122651 - 2¹⁵ = 401089883 is a prime.

It is a super-2 number, since 2×401122651² = 321798762290535602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401222651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3399286 + ... + 3399403.

It is an arithmetic number, because the mean of its divisors is an integer number (101980350).

Almost surely, 2^401122651 is an apocalyptic number.

401122651 is a deficient number, since it is larger than the sum of its proper divisors (6798749).

401122651 is an equidigital number, since it uses as much as digits as its factorization.

401122651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798748.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 401122651 is about 20028.0466096921. The cubic root of 401122651 is about 737.4949694572.

Adding to 401122651 its reverse (156221104), we get a palindrome (557343755).

It can be divided in two parts, 4011 and 22651, that added together give a palindrome (26662).

The spelling of 401122651 in words is "four hundred one million, one hundred twenty-two thousand, six hundred fifty-one".