1226505511026 has 24 divisors (see below), whose sum is σ = 2755851890064. Its totient is φ = 408835170180.

The previous prime is 1226505511009. The next prime is 1226505511031. The reversal of 1226505511026 is 6201155056221.

1226505511026 is a `hidden beast` number, since 1 + 2 + 26 + 50 + 551 + 10 + 26 = 666.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1261836460 + ... + 1261837431.

It is an arithmetic number, because the mean of its divisors is an integer number (114827162086).

Almost surely, 2^{1226505511026} is an apocalyptic number.

1226505511026 is an abundant number, since it is smaller than the sum of its proper divisors (1529346379038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226505511026 is an equidigital number, since it uses as much as digits as its factorization.

1226505511026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523673908 (or 2523673896 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 1226505511026 in words is "one trillion, two hundred twenty-six billion, five hundred five million, five hundred eleven thousand, twenty-six".