1220542022 has 16 divisors (see below), whose sum is σ = 2094089760. Its totient is φ = 522656448.

The previous prime is 1220542019. The next prime is 1220542031. The reversal of 1220542022 is 2202450221.

It is a junction number, because it is equal to n+sod(n) for n = 1220541985 and 1220542003.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 18263 + ... + 52674.

It is an arithmetic number, because the mean of its divisors is an integer number (130880610).

Almost surely, 2^1220542022 is an apocalyptic number.

1220542022 is a deficient number, since it is larger than the sum of its proper divisors (873547738).

1220542022 is a wasteful number, since it uses less digits than its factorization.

1220542022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72175.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1220542022 is about 34936.2565539011. The cubic root of 1220542022 is about 1068.6879489663.

Adding to 1220542022 its reverse (2202450221), we get a palindrome (3422992243).

The spelling of 1220542022 in words is "one billion, two hundred twenty million, five hundred forty-two thousand, twenty-two".