1220023002 has 32 divisors (see below), whose sum is σ = 2666257920. Its totient is φ = 369094320.

The previous prime is 1220022989. The next prime is 1220023067. The reversal of 1220023002 is 2003200221.

It is a super-2 number, since 2×1220023002² = 2976912250818184008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25923 + ... + 55785.

It is an arithmetic number, because the mean of its divisors is an integer number (83320560).

Almost surely, 2^1220023002 is an apocalyptic number.

1220023002 is an abundant number, since it is smaller than the sum of its proper divisors (1446234918).

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

1220023002 is a wasteful number, since it uses less digits than its factorization.

1220023002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30498.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1220023002 is about 34928.8276642661. The cubic root of 1220023002 is about 1068.5364454949.

Adding to 1220023002 its reverse (2003200221), we get a palindrome (3223223223).

The spelling of 1220023002 in words is "one billion, two hundred twenty million, twenty-three thousand, two".