12420211189826 has 32 divisors (see below), whose sum is σ = 20386626414336. Its totient is φ = 5628151386000.

The previous prime is 12420211189783. The next prime is 12420211189831. The reversal of 12420211189826 is 62898111202421.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148591121 + ... + 148674683.

It is an arithmetic number, because the mean of its divisors is an integer number (637082075448).

Almost surely, 2^{12420211189826} is an apocalyptic number.

12420211189826 is a deficient number, since it is larger than the sum of its proper divisors (7966415224510).

12420211189826 is a wasteful number, since it uses less digits than its factorization.

12420211189826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104318.

The product of its (nonzero) digits is 221184, while the sum is 47.

The spelling of 12420211189826 in words is "twelve trillion, four hundred twenty billion, two hundred eleven million, one hundred eighty-nine thousand, eight hundred twenty-six".