221022222010000 has 50 divisors (see below), whose sum is σ = 535116901732622. Its totient is φ = 88408888800000.

The previous prime is 221022222009973. The next prime is 221022222010061. The reversal of 221022222010000 is 10222220122.

It can be written as a sum of positive squares in 5 ways, for example, as 113047844700816 + 107974377309184 = 10632396^2 + 10391072^2 .

It is a tau number, because it is divible by the number of its divisors (50).

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11051101101 + ... + 11051121100.

Almost surely, 2^{221022222010000} is an apocalyptic number.

221022222010000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221022222010000 is an abundant number, since it is smaller than the sum of its proper divisors (314094679722622).

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

221022222010000 is an equidigital number, since it uses as much as digits as its factorization.

221022222010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22102222229 (or 22102222208 counting only the distinct ones).

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

Adding to 221022222010000 its reverse (10222220122), we get a palindrome (221032444230122).

The spelling of 221022222010000 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred twenty-two million, ten thousand".