2102222220000 has 480 divisors, whose sum is σ = 8135080740864. Its totient is φ = 465004800000.

The previous prime is 2102222219987. The next prime is 2102222220019. The reversal of 2102222220000 is 222222012.

It is a tau number, because it is divible by the number of its divisors (480).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 12939270 + ... + 13100730.

Almost surely, 2^{2102222220000} is an apocalyptic number.

2102222220000 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 2102222220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4067540370432).

2102222220000 is an abundant number, since it is smaller than the sum of its proper divisors (6032858520864).

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

2102222220000 is a wasteful number, since it uses less digits than its factorization.

2102222220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161532 (or 161509 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2102222220000 its reverse (222222012), we get a palindrome (2102444442012).

The spelling of 2102222220000 in words is "two trillion, one hundred two billion, two hundred twenty-two million, two hundred twenty thousand".