2002101221100 has 72 divisors (see below), whose sum is σ = 5934032728848. Its totient is φ = 520871859200.

The previous prime is 2002101221069. The next prime is 2002101221119. The reversal of 2002101221100 is 11221012002.

It is a super-2 number, since 2×2002101221100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

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 23 ways as a sum of consecutive naturals, for example, 81373929 + ... + 81398528.

It is an arithmetic number, because the mean of its divisors is an integer number (82417121234).

Almost surely, 2^{2002101221100} is an apocalyptic number.

2002101221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002101221100 is an abundant number, since it is smaller than the sum of its proper divisors (3931931507748).

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

2002101221100 is a wasteful number, since it uses less digits than its factorization.

2002101221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162772515 (or 162772508 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 2002101221100 its reverse (11221012002), we get a palindrome (2013322233102).

The spelling of 2002101221100 in words is "two trillion, two billion, one hundred one million, two hundred twenty-one thousand, one hundred".