1220475622 has 16 divisors (see below), whose sum is σ = 1874695680. Its totient is φ = 595598472.

The previous prime is 1220475559. The next prime is 1220475623. The reversal of 1220475622 is 2265740221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220475623) by changing a digit.

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, 129523 + ... + 138625.

It is an arithmetic number, because the mean of its divisors is an integer number (117168480).

Almost surely, 2^1220475622 is an apocalyptic number.

1220475622 is a deficient number, since it is larger than the sum of its proper divisors (654220058).

1220475622 is a wasteful number, since it uses less digits than its factorization.

1220475622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10707.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 1220475622 is about 34935.3062388181. The cubic root of 1220475622 is about 1068.6685690063.

The spelling of 1220475622 in words is "one billion, two hundred twenty million, four hundred seventy-five thousand, six hundred twenty-two".