1222356026 has 8 divisors (see below), whose sum is σ = 1835029620. Its totient is φ = 610679488.

The previous prime is 1222356011. The next prime is 1222356029. The reversal of 1222356026 is 6206532221.

It can be written as a sum of positive squares in 2 ways, for example, as 750814801 + 471541225 = 27401^2 + 21715^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1222356026.

It is not an unprimeable number, because it can be changed into a prime (1222356029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246191 + ... + 251106.

Almost surely, 2^1222356026 is an apocalyptic number.

1222356026 is a deficient number, since it is larger than the sum of its proper divisors (612673594).

1222356026 is a wasteful number, since it uses less digits than its factorization.

1222356026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498528.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1222356026 is about 34962.2085400794. The cubic root of 1222356026 is about 1069.2171249577.

Adding to 1222356026 its reverse (6206532221), we get a palindrome (7428888247).

The spelling of 1222356026 in words is "one billion, two hundred twenty-two million, three hundred fifty-six thousand, twenty-six".