1226829722 has 4 divisors (see below), whose sum is σ = 1840244586. Its totient is φ = 613414860.

The previous prime is 1226829719. The next prime is 1226829733. The reversal of 1226829722 is 2279286221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2279286221 = 509 ⋅4477969.

It can be written as a sum of positive squares in only one way, i.e., 938135641 + 288694081 = 30629^2 + 16991^2 .

It is a super-2 number, since 2×1226829722² = 3010222333565194568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1226829722.

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 as a sum of consecutive naturals, namely, 306707429 + ... + 306707432.

Almost surely, 2^1226829722 is an apocalyptic number.

1226829722 is a deficient number, since it is larger than the sum of its proper divisors (613414864).

1226829722 is an equidigital number, since it uses as much as digits as its factorization.

1226829722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613414863.

The product of its digits is 96768, while the sum is 41.

The square root of 1226829722 is about 35026.1291324063. The cubic root of 1226829722 is about 1070.5199446997.

The spelling of 1226829722 in words is "one billion, two hundred twenty-six million, eight hundred twenty-nine thousand, seven hundred twenty-two".