12211620144879 has 16 divisors (see below), whose sum is σ = 16710853685760. Its totient is φ = 7929463882560.

The previous prime is 12211620144859. The next prime is 12211620144887. The reversal of 12211620144879 is 97844102611221.

It is not a de Polignac number, because 12211620144879 - 2¹¹ = 12211620142831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211620144859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341298567 + ... + 341334344.

It is an arithmetic number, because the mean of its divisors is an integer number (1044428355360).

Almost surely, 2^{12211620144879} is an apocalyptic number.

12211620144879 is a deficient number, since it is larger than the sum of its proper divisors (4499233540881).

12211620144879 is an equidigital number, since it uses as much as digits as its factorization.

12211620144879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682633070.

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 12211620144879 in words is "twelve trillion, two hundred eleven billion, six hundred twenty million, one hundred forty-four thousand, eight hundred seventy-nine".