2122220100000 has 2304 divisors, whose sum is σ = 9651990233088. Its totient is φ = 393984000000.

The previous prime is 2122220099983. The next prime is 2122220100001. The reversal of 2122220100000 is 10222212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2122220100001) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 11111099905 + ... + 11111100095.

It is an arithmetic number, because the mean of its divisors is an integer number (4189231872).

Almost surely, 2^{2122220100000} is an apocalyptic number.

2122220100000 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 2122220100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4825995116544).

2122220100000 is an abundant number, since it is smaller than the sum of its proper divisors (7529770133088).

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

2122220100000 is a wasteful number, since it uses less digits than its factorization.

2122220100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2122220100000 its reverse (10222212), we get a palindrome (2122230322212).

The spelling of 2122220100000 in words is "two trillion, one hundred twenty-two billion, two hundred twenty million, one hundred thousand".