2102221222000 has 40 divisors (see below), whose sum is σ = 5083170919632. Its totient is φ = 840888488000.

The previous prime is 2102221221967. The next prime is 2102221222019. The reversal of 2102221222000 is 2221222012.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 525553306 + ... + 525557305.

Almost surely, 2^{2102221222000} is an apocalyptic number.

2102221222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102221222000 is an abundant number, since it is smaller than the sum of its proper divisors (2980949697632).

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

2102221222000 is a wasteful number, since it uses less digits than its factorization.

2102221222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051110634 (or 1051110618 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2102221222000 its reverse (2221222012), we get a palindrome (2104442444012).

The spelling of 2102221222000 in words is "two trillion, one hundred two billion, two hundred twenty-one million, two hundred twenty-two thousand".