2212222100000 has 144 divisors (see below), whose sum is σ = 5938685024832. Its totient is φ = 804444000000.

The previous prime is 2212222099973. The next prime is 2212222100113. The reversal of 2212222100000 is 12222122.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94445 + ... + 2105555.

It is an arithmetic number, because the mean of its divisors is an integer number (41240868228).

Almost surely, 2^{2212222100000} is an apocalyptic number.

2212222100000 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 2212222100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2969342512416).

2212222100000 is an abundant number, since it is smaller than the sum of its proper divisors (3726462924832).

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

2212222100000 is an equidigital number, since it uses as much as digits as its factorization.

2212222100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011157 (or 2011129 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2212222100000 its reverse (12222122), we get a palindrome (2212234322122).

It can be divided in two parts, 22122 and 22100000, that added together give a palindrome (22122122).

The spelling of 2212222100000 in words is "two trillion, two hundred twelve billion, two hundred twenty-two million, one hundred thousand".