400122851267 has 4 divisors (see below), whose sum is σ = 400398609336. Its totient is φ = 399847093200.

The previous prime is 400122851251. The next prime is 400122851269. The reversal of 400122851267 is 762158221004.

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

It is a cyclic number.

It is not a de Polignac number, because 400122851267 - 2⁴ = 400122851251 is a prime.

It is a super-2 number, since 2×400122851267² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400122851267.

It is not an unprimeable number, because it can be changed into a prime (400122851269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137876858 + ... + 137879759.

It is an arithmetic number, because the mean of its divisors is an integer number (100099652334).

Almost surely, 2^400122851267 is an apocalyptic number.

400122851267 is a deficient number, since it is larger than the sum of its proper divisors (275758069).

400122851267 is a wasteful number, since it uses less digits than its factorization.

400122851267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275758068.

The product of its (nonzero) digits is 53760, while the sum is 38.

The spelling of 400122851267 in words is "four hundred billion, one hundred twenty-two million, eight hundred fifty-one thousand, two hundred sixty-seven".