1202020021230 has 128 divisors (see below), whose sum is σ = 3306789273600. Its totient is φ = 273930159744.

The previous prime is 1202020021187. The next prime is 1202020021231. The reversal of 1202020021230 is 321200202021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202020021231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 128649939 + ... + 128659281.

It is an arithmetic number, because the mean of its divisors is an integer number (25834291200).

Almost surely, 2^{1202020021230} is an apocalyptic number.

1202020021230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202020021230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1653394636800).

1202020021230 is an abundant number, since it is smaller than the sum of its proper divisors (2104769252370).

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

1202020021230 is a wasteful number, since it uses less digits than its factorization.

1202020021230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11118.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1202020021230 its reverse (321200202021), we get a palindrome (1523220223251).

The spelling of 1202020021230 in words is "one trillion, two hundred two billion, twenty million, twenty-one thousand, two hundred thirty".