1202221102020 has 48 divisors (see below), whose sum is σ = 3366793631040. Its totient is φ = 320537575296.

The previous prime is 1202221102009. The next prime is 1202221102037. The reversal of 1202221102020 is 202011222021.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1354882 + ... + 2059161.

It is an arithmetic number, because the mean of its divisors is an integer number (70141533980).

Almost surely, 2^{1202221102020} is an apocalyptic number.

1202221102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202221102020 is an abundant number, since it is smaller than the sum of its proper divisors (2164572529020).

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

1202221102020 is a wasteful number, since it uses less digits than its factorization.

1202221102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3419924 (or 3419922 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1202221102020 its reverse (202011222021), we get a palindrome (1404232324041).

The spelling of 1202221102020 in words is "one trillion, two hundred two billion, two hundred twenty-one million, one hundred two thousand, twenty".