1212656026426 has 32 divisors (see below), whose sum is σ = 2074584371328. Its totient is φ = 527362799040.

The previous prime is 1212656026381. The next prime is 1212656026453. The reversal of 1212656026426 is 6246206562121.

It is a happy number.

It is a super-2 number, since 2×1212656026426² (a number of 25 digits) contains 22 as substring.

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, 15093165 + ... + 15173296.

It is an arithmetic number, because the mean of its divisors is an integer number (64830761604).

Almost surely, 2^{1212656026426} is an apocalyptic number.

1212656026426 is a deficient number, since it is larger than the sum of its proper divisors (861928344902).

1212656026426 is a wasteful number, since it uses less digits than its factorization.

1212656026426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30266566.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 1212656026426 in words is "one trillion, two hundred twelve billion, six hundred fifty-six million, twenty-six thousand, four hundred twenty-six".