222101221201021 has 8 divisors (see below), whose sum is σ = 231843284037504. Its totient is φ = 212366282364720.

The previous prime is 222101221201007. The next prime is 222101221201051. The reversal of 222101221201021 is 120102122101222.

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

It is a cyclic number.

It is not a de Polignac number, because 222101221201021 - 2³¹ = 222099073717373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222101221201021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101221201051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1780936326 + ... + 1781061031.

It is an arithmetic number, because the mean of its divisors is an integer number (28980410504688).

Almost surely, 2^{222101221201021} is an apocalyptic number.

It is an amenable number.

222101221201021 is a deficient number, since it is larger than the sum of its proper divisors (9742062836483).

222101221201021 is a wasteful number, since it uses less digits than its factorization.

222101221201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562000091.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222101221201021 its reverse (120102122101222), we get a palindrome (342203343302243).

The spelling of 222101221201021 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred twenty-one million, two hundred one thousand, twenty-one".