201021220100222 has 8 divisors (see below), whose sum is σ = 308544198293496. Its totient is φ = 98173154002392.

The previous prime is 201021220100213. The next prime is 201021220100273. The reversal of 201021220100222 is 222001022120102.

It is a happy number.

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 201021220100222.

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, 1168728023753 + ... + 1168728023924.

It is an arithmetic number, because the mean of its divisors is an integer number (38568024786687).

Almost surely, 2^{201021220100222} is an apocalyptic number.

201021220100222 is a deficient number, since it is larger than the sum of its proper divisors (107522978193274).

201021220100222 is a wasteful number, since it uses less digits than its factorization.

201021220100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337456047722.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201021220100222 its reverse (222001022120102), we get a palindrome (423022242220324).

The spelling of 201021220100222 in words is "two hundred one trillion, twenty-one billion, two hundred twenty million, one hundred thousand, two hundred twenty-two".