1220265502 has 16 divisors (see below), whose sum is σ = 1854416592. Its totient is φ = 602142400.

The previous prime is 1220265499. The next prime is 1220265517. The reversal of 1220265502 is 2055620221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178752 + ... + 185452.

It is an arithmetic number, because the mean of its divisors is an integer number (115901037).

Almost surely, 2^1220265502 is an apocalyptic number.

1220265502 is a deficient number, since it is larger than the sum of its proper divisors (634151090).

1220265502 is a wasteful number, since it uses less digits than its factorization.

1220265502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1220265502 is about 34932.2988364637. The cubic root of 1220265502 is about 1068.6072373082.

Adding to 1220265502 its reverse (2055620221), we get a palindrome (3275885723).

The spelling of 1220265502 in words is "one billion, two hundred twenty million, two hundred sixty-five thousand, five hundred two".