1226144526621 has 8 divisors (see below), whose sum is σ = 1868410707264. Its totient is φ = 700654015200.

The previous prime is 1226144526611. The next prime is 1226144526643. The reversal of 1226144526621 is 1266254416221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1226144526621 - 2⁹ = 1226144526109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226144526601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29193917280 + ... + 29193917321.

It is an arithmetic number, because the mean of its divisors is an integer number (233551338408).

Almost surely, 2^{1226144526621} is an apocalyptic number.

It is an amenable number.

1226144526621 is a deficient number, since it is larger than the sum of its proper divisors (642266180643).

1226144526621 is an equidigital number, since it uses as much as digits as its factorization.

1226144526621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58387834611.

The product of its digits is 276480, while the sum is 42.

The spelling of 1226144526621 in words is "one trillion, two hundred twenty-six billion, one hundred forty-four million, five hundred twenty-six thousand, six hundred twenty-one".