22202210020221 has 128 divisors (see below), whose sum is σ = 41240383303680. Its totient is φ = 11468517580800.

The previous prime is 22202210020187. The next prime is 22202210020231. The reversal of 22202210020221 is 12202001220222.

22202210020221 is a `hidden beast` number, since 2 + 220 + 221 + 0 + 0 + 2 + 0 + 221 = 666.

It is not a de Polignac number, because 22202210020221 - 2⁷ = 22202210020093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22202210020194 and 22202210020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202210020231) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 337166326 + ... + 337232168.

It is an arithmetic number, because the mean of its divisors is an integer number (322190494560).

Almost surely, 2^{22202210020221} is an apocalyptic number.

22202210020221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22202210020221 is a deficient number, since it is larger than the sum of its proper divisors (19038173283459).

22202210020221 is a wasteful number, since it uses less digits than its factorization.

22202210020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66784 (or 66778 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22202210020221 its reverse (12202001220222), we get a palindrome (34404211240443).

The spelling of 22202210020221 in words is "twenty-two trillion, two hundred two billion, two hundred ten million, twenty thousand, two hundred twenty-one".