1002020233220 has 48 divisors (see below), whose sum is σ = 2228107921200. Its totient is φ = 377216507904.

The previous prime is 1002020233213. The next prime is 1002020233241. The reversal of 1002020233220 is 223320202001.

It can be written as a sum of positive squares in 8 ways, for example, as 196589371456 + 805430861764 = 443384^2 + 897458^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13296206 + ... + 13371354.

It is an arithmetic number, because the mean of its divisors is an integer number (46418915025).

Almost surely, 2^{1002020233220} is an apocalyptic number.

1002020233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002020233220 is an abundant number, since it is smaller than the sum of its proper divisors (1226087687980).

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

1002020233220 is a wasteful number, since it uses less digits than its factorization.

1002020233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114392 (or 114390 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 1002020233220 its reverse (223320202001), we get a palindrome (1225340435221).

The spelling of 1002020233220 in words is "one trillion, two billion, twenty million, two hundred thirty-three thousand, two hundred twenty".