2221022222000 has 120 divisors (see below), whose sum is σ = 5704923775200. Its totient is φ = 836149324800.

The previous prime is 2221022221967. The next prime is 2221022222039. The reversal of 2221022222000 is 2222201222.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2221022222000.

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, 1343300 + ... + 2499299.

It is an arithmetic number, because the mean of its divisors is an integer number (47541031460).

Almost surely, 2^{2221022222000} is an apocalyptic number.

2221022222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221022222000 is an abundant number, since it is smaller than the sum of its proper divisors (3483901553200).

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

2221022222000 is a wasteful number, since it uses less digits than its factorization.

2221022222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842656 (or 3842623 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 2221022222000 its reverse (2222201222), we get a palindrome (2223244423222).

The spelling of 2221022222000 in words is "two trillion, two hundred twenty-one billion, twenty-two million, two hundred twenty-two thousand".