2211002120100 has 144 divisors (see below), whose sum is σ = 6597966203136. Its totient is φ = 571342080000.

The previous prime is 2211002120083. The next prime is 2211002120123. The reversal of 2211002120100 is 10212001122.

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 (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 647820 + ... + 2200380.

It is an arithmetic number, because the mean of its divisors is an integer number (45819209744).

Almost surely, 2^{2211002120100} is an apocalyptic number.

2211002120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211002120100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3298983101568).

2211002120100 is an abundant number, since it is smaller than the sum of its proper divisors (4386964083036).

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

2211002120100 is a wasteful number, since it uses less digits than its factorization.

2211002120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552726 (or 1552719 counting only the distinct ones).

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

Adding to 2211002120100 its reverse (10212001122), we get a palindrome (2221214121222).

The spelling of 2211002120100 in words is "two trillion, two hundred eleven billion, two million, one hundred twenty thousand, one hundred".