1002213101220 has 24 divisors (see below), whose sum is σ = 2806196683584. Its totient is φ = 267256826976.

The previous prime is 1002213101117. The next prime is 1002213101237. The reversal of 1002213101220 is 221013122001.

It is a super-2 number, since 2×1002213101220² (a number of 25 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1002213101220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8351775784 + ... + 8351775903.

It is an arithmetic number, because the mean of its divisors is an integer number (116924861816).

Almost surely, 2^{1002213101220} is an apocalyptic number.

1002213101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002213101220 is an abundant number, since it is smaller than the sum of its proper divisors (1803983582364).

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

1002213101220 is a wasteful number, since it uses less digits than its factorization.

1002213101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16703551699 (or 16703551697 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1002213101220 its reverse (221013122001), we get a palindrome (1223226223221).

The spelling of 1002213101220 in words is "one trillion, two billion, two hundred thirteen million, one hundred one thousand, two hundred twenty".