222202001200221 has 24 divisors (see below), whose sum is σ = 366858179775360. Its totient is φ = 126955774306656.

The previous prime is 222202001200171. The next prime is 222202001200237. The reversal of 222202001200221 is 122002100202222.

222202001200221 is a `hidden beast` number, since 2 + 2 + 220 + 20 + 0 + 1 + 200 + 221 = 666.

It is not a de Polignac number, because 222202001200221 - 2³¹ = 222199853716573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222202001200194 and 222202001200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222202001200271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232822890 + ... + 233775323.

It is an arithmetic number, because the mean of its divisors is an integer number (15285757490640).

Almost surely, 2^{222202001200221} is an apocalyptic number.

222202001200221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222202001200221 is a deficient number, since it is larger than the sum of its proper divisors (144656178575139).

222202001200221 is a wasteful number, since it uses less digits than its factorization.

222202001200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466605785 (or 466605782 counting only the distinct ones).

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

Adding to 222202001200221 its reverse (122002100202222), we get a palindrome (344204101402443).

The spelling of 222202001200221 in words is "two hundred twenty-two trillion, two hundred two billion, one million, two hundred thousand, two hundred twenty-one".