222001111010221 has 16 divisors (see below), whose sum is σ = 228186866448640. Its totient is φ = 215900325875520.

The previous prime is 222001111010179. The next prime is 222001111010243. The reversal of 222001111010221 is 122010111100222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222001111010221 is a prime.

It is a super-2 number, since 2×222001111010221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222001111010195 and 222001111010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001111010291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58047811 + ... + 61753951.

It is an arithmetic number, because the mean of its divisors is an integer number (14261679153040).

Almost surely, 2^{222001111010221} is an apocalyptic number.

It is an amenable number.

222001111010221 is a deficient number, since it is larger than the sum of its proper divisors (6185755438419).

222001111010221 is a wasteful number, since it uses less digits than its factorization.

222001111010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3717604.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222001111010221 its reverse (122010111100222), we get a palindrome (344011222110443).

Subtracting from 222001111010221 its reverse (122010111100222), we obtain a palindrome (99990999909999).

The spelling of 222001111010221 in words is "two hundred twenty-two trillion, one billion, one hundred eleven million, ten thousand, two hundred twenty-one".