1213223026 has 16 divisors (see below), whose sum is σ = 1831705344. Its totient is φ = 602666064.

The previous prime is 1213222949. The next prime is 1213223029. The reversal of 1213223026 is 6203223121.

It is a super-2 number, since 2×1213223026² = 2943820221633193352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213222988 and 1213223006.

It is not an unprimeable number, because it can be changed into a prime (1213223029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241476 + ... + 246448.

It is an arithmetic number, because the mean of its divisors is an integer number (114481584).

Almost surely, 2^1213223026 is an apocalyptic number.

1213223026 is a deficient number, since it is larger than the sum of its proper divisors (618482318).

1213223026 is a wasteful number, since it uses less digits than its factorization.

1213223026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1213223026 is about 34831.3511940034. The cubic root of 1213223026 is about 1066.5475312039.

Adding to 1213223026 its reverse (6203223121), we get a palindrome (7416446147).

The spelling of 1213223026 in words is "one billion, two hundred thirteen million, two hundred twenty-three thousand, twenty-six".