221211010222 has 32 divisors (see below), whose sum is σ = 355804021440. Its totient is φ = 102780940800.

The previous prime is 221211010217. The next prime is 221211010249. The reversal of 221211010222 is 222010112122.

It is a happy number.

It is a super-2 number, since 2×221211010222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221211010196 and 221211010205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143088 + ... + 1322524.

It is an arithmetic number, because the mean of its divisors is an integer number (11118875670).

Almost surely, 2^221211010222 is an apocalyptic number.

221211010222 is a deficient number, since it is larger than the sum of its proper divisors (134593011218).

221211010222 is a wasteful number, since it uses less digits than its factorization.

221211010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179916.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221211010222 its reverse (222010112122), we get a palindrome (443221122344).

The spelling of 221211010222 in words is "two hundred twenty-one billion, two hundred eleven million, ten thousand, two hundred twenty-two".