1001001202220 has 36 divisors (see below), whose sum is σ = 2233029338400. Its totient is φ = 376847509248.

The previous prime is 1001001202141. The next prime is 1001001202283. The reversal of 1001001202220 is 222021001001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86586020 + ... + 86597579.

Almost surely, 2^{1001001202220} is an apocalyptic number.

1001001202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1001001202220 is an abundant number, since it is smaller than the sum of its proper divisors (1232028136180).

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

1001001202220 is a wasteful number, since it uses less digits than its factorization.

1001001202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173183642 (or 173183623 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1001001202220 its reverse (222021001001), we get a palindrome (1223022203221).

The spelling of 1001001202220 in words is "one trillion, one billion, one million, two hundred two thousand, two hundred twenty".