1220601606 has 32 divisors (see below), whose sum is σ = 2791004928. Its totient is φ = 348611040.

The previous prime is 1220601601. The next prime is 1220601623. The reversal of 1220601606 is 6061060221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220601601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179916 + ... + 186576.

It is an arithmetic number, because the mean of its divisors is an integer number (87218904).

Almost surely, 2^1220601606 is an apocalyptic number.

1220601606 is an abundant number, since it is smaller than the sum of its proper divisors (1570403322).

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

1220601606 is a wasteful number, since it uses less digits than its factorization.

1220601606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11036.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1220601606 is about 34937.1092965632. The cubic root of 1220601606 is about 1068.7053389634.

Adding to 1220601606 its reverse (6061060221), we get a palindrome (7281661827).

The spelling of 1220601606 in words is "one billion, two hundred twenty million, six hundred one thousand, six hundred six".