221001201220222 has 8 divisors (see below), whose sum is σ = 331501878740736. Its totient is φ = 110500574973312.

The previous prime is 221001201220201. The next prime is 221001201220237. The reversal of 221001201220222 is 222022102100122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 221001201220222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888643 + ... + 21042625.

It is an arithmetic number, because the mean of its divisors is an integer number (41437734842592).

Almost surely, 2^{221001201220222} is an apocalyptic number.

221001201220222 is a deficient number, since it is larger than the sum of its proper divisors (110500677520514).

221001201220222 is a wasteful number, since it uses less digits than its factorization.

221001201220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25636802.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221001201220222 its reverse (222022102100122), we get a palindrome (443023303320344).

The spelling of 221001201220222 in words is "two hundred twenty-one trillion, one billion, two hundred one million, two hundred twenty thousand, two hundred twenty-two".