1222344567890 has 16 divisors (see below), whose sum is σ = 2200239874008. Its totient is φ = 488933460096.

The previous prime is 1222344567887. The next prime is 1222344567907. The reversal of 1222344567890 is 987654432221.

It can be written as a sum of positive squares in 4 ways, for example, as 444492890209 + 777851677681 = 666703^2 + 881959^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783974 + ... + 1749086.

It is a 2-persistent number, because it is pandigital, and so is 2⋅1222344567890 = 2444689135780, but 3⋅1222344567890 = 3667033703670 is not.

Almost surely, 2^{1222344567890} is an apocalyptic number.

1222344567890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222344567890 is a deficient number, since it is larger than the sum of its proper divisors (977895306118).

1222344567890 is a wasteful number, since it uses less digits than its factorization.

1222344567890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091773.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 1222344567890 in words is "one trillion, two hundred twenty-two billion, three hundred forty-four million, five hundred sixty-seven thousand, eight hundred ninety".