1226169500388 has 48 divisors (see below), whose sum is σ = 3277552139904. Its totient is φ = 349501985280.

The previous prime is 1226169500317. The next prime is 1226169500389. The reversal of 1226169500388 is 8830059616221.

It is a self number, because there is not a number n which added to its sum of digits gives 1226169500388.

It is not an unprimeable number, because it can be changed into a prime (1226169500389) 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, 17301045 + ... + 17371772.

It is an arithmetic number, because the mean of its divisors is an integer number (68282336248).

Almost surely, 2^{1226169500388} is an apocalyptic number.

It is an amenable number.

1226169500388 is an abundant number, since it is smaller than the sum of its proper divisors (2051382639516).

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

1226169500388 is a wasteful number, since it uses less digits than its factorization.

1226169500388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34673252 (or 34673250 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 1226169500388 in words is "one trillion, two hundred twenty-six billion, one hundred sixty-nine million, five hundred thousand, three hundred eighty-eight".