1225522122 has 24 divisors (see below), whose sum is σ = 2694124608. Its totient is φ = 371370120.

The previous prime is 1225522121. The next prime is 1225522157. The reversal of 1225522122 is 2212255221.

It is a super-2 number, since 2×1225522122² = 3003808943022765768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1225522092 and 1225522101.

It is not an unprimeable number, because it can be changed into a prime (1225522121) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 843298 + ... + 844749.

It is an arithmetic number, because the mean of its divisors is an integer number (112255192).

Almost surely, 2^1225522122 is an apocalyptic number.

1225522122 is an abundant number, since it is smaller than the sum of its proper divisors (1468602486).

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

1225522122 is a wasteful number, since it uses less digits than its factorization.

1225522122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688074 (or 1688063 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 1225522122 is about 35007.4580910982. The cubic root of 1225522122 is about 1070.1394763883.

Adding to 1225522122 its reverse (2212255221), we get a palindrome (3437777343).

The spelling of 1225522122 in words is "one billion, two hundred twenty-five million, five hundred twenty-two thousand, one hundred twenty-two".