2102000211220 has 96 divisors (see below), whose sum is σ = 5441474981376. Its totient is φ = 664193779200.

The previous prime is 2102000211217. The next prime is 2102000211239. The reversal of 2102000211220 is 221120002012.

It is a happy number.

It is a super-2 number, since 2×2102000211220² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 2102000211220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233250 + ... + 2063590.

It is an arithmetic number, because the mean of its divisors is an integer number (56682031056).

Almost surely, 2^{2102000211220} is an apocalyptic number.

2102000211220 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 2102000211220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2720737490688).

2102000211220 is an abundant number, since it is smaller than the sum of its proper divisors (3339474770156).

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

2102000211220 is a wasteful number, since it uses less digits than its factorization.

2102000211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831001 (or 1830999 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2102000211220 its reverse (221120002012), we get a palindrome (2323120213232).

The spelling of 2102000211220 in words is "two trillion, one hundred two billion, two hundred eleven thousand, two hundred twenty".