1226919932490 has 64 divisors (see below), whose sum is σ = 3391764332544. Its totient is φ = 278230655808.

The previous prime is 1226919932437. The next prime is 1226919932507. The reversal of 1226919932490 is 942399196221.

It is a self number, because there is not a number n which added to its sum of digits gives 1226919932490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22975204 + ... + 23028543.

It is an arithmetic number, because the mean of its divisors is an integer number (52996317696).

Almost surely, 2^{1226919932490} is an apocalyptic number.

1226919932490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226919932490 is an abundant number, since it is smaller than the sum of its proper divisors (2164844400054).

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

1226919932490 is a wasteful number, since it uses less digits than its factorization.

1226919932490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46003891.

The product of its (nonzero) digits is 3779136, while the sum is 57.

The spelling of 1226919932490 in words is "one trillion, two hundred twenty-six billion, nine hundred nineteen million, nine hundred thirty-two thousand, four hundred ninety".