1220021230302 has 48 divisors (see below), whose sum is σ = 3026589232992. Its totient is φ = 347933154240.

The previous prime is 1220021230217. The next prime is 1220021230303. The reversal of 1220021230302 is 2030321200221.

1220021230302 is a `hidden beast` number, since 122 + 0 + 0 + 212 + 30 + 302 = 666.

It is a super-2 number, since 2×1220021230302² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220021230303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8880733 + ... + 9017064.

It is an arithmetic number, because the mean of its divisors is an integer number (63053942354).

Almost surely, 2^{1220021230302} is an apocalyptic number.

1220021230302 is an abundant number, since it is smaller than the sum of its proper divisors (1806568002690).

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

1220021230302 is a wasteful number, since it uses less digits than its factorization.

1220021230302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17898353 (or 17898350 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1220021230302 its reverse (2030321200221), we get a palindrome (3250342430523).

The spelling of 1220021230302 in words is "one trillion, two hundred twenty billion, twenty-one million, two hundred thirty thousand, three hundred two".