2100221111000 has 64 divisors (see below), whose sum is σ = 4915422701280. Its totient is φ = 839933692800.

The previous prime is 2100221110993. The next prime is 2100221111011. The reversal of 2100221111000 is 1111220012.

It is a super-4 number, since 4×2100221111000⁴ (a number of 50 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5316314 + ... + 5697686.

Almost surely, 2^{2100221111000} is an apocalyptic number.

2100221111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100221111000 is an abundant number, since it is smaller than the sum of its proper divisors (2815201590280).

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

2100221111000 is a wasteful number, since it uses less digits than its factorization.

2100221111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386901 (or 386887 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2100221111000 its reverse (1111220012), we get a palindrome (2101332331012).

The spelling of 2100221111000 in words is "two trillion, one hundred billion, two hundred twenty-one million, one hundred eleven thousand".