221010311321222 has 8 divisors (see below), whose sum is σ = 331516300818000. Its totient is φ = 110504877715224.

The previous prime is 221010311321171. The next prime is 221010311321249. The reversal of 221010311321222 is 222123113010122.

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

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, 137977322 + ... + 139569917.

It is an arithmetic number, because the mean of its divisors is an integer number (41439537602250).

Almost surely, 2^{221010311321222} is an apocalyptic number.

221010311321222 is a deficient number, since it is larger than the sum of its proper divisors (110505989496778).

221010311321222 is a wasteful number, since it uses less digits than its factorization.

221010311321222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277945390.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 221010311321222 its reverse (222123113010122), we get a palindrome (443133424331344).

The spelling of 221010311321222 in words is "two hundred twenty-one trillion, ten billion, three hundred eleven million, three hundred twenty-one thousand, two hundred twenty-two".