1222566451401 has 4 divisors (see below), whose sum is σ = 1630088601872. Its totient is φ = 815044300932.

The previous prime is 1222566451399. The next prime is 1222566451409. The reversal of 1222566451401 is 1041546652221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1222566451401 - 2¹ = 1222566451399 is a prime.

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 1222566451401.

It is not an unprimeable number, because it can be changed into a prime (1222566451409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203761075231 + ... + 203761075236.

It is an arithmetic number, because the mean of its divisors is an integer number (407522150468).

Almost surely, 2^{1222566451401} is an apocalyptic number.

It is an amenable number.

1222566451401 is a deficient number, since it is larger than the sum of its proper divisors (407522150471).

1222566451401 is an equidigital number, since it uses as much as digits as its factorization.

1222566451401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407522150470.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 1222566451401 in words is "one trillion, two hundred twenty-two billion, five hundred sixty-six million, four hundred fifty-one thousand, four hundred one".