221012122202 has 16 divisors (see below), whose sum is σ = 349743744000. Its totient is φ = 104456782080.

The previous prime is 221012122193. The next prime is 221012122211. The reversal of 221012122202 is 202221210122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221012122193) and next prime (221012122211).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6459674 + ... + 6493797.

It is an arithmetic number, because the mean of its divisors is an integer number (21858984000).

Almost surely, 2^221012122202 is an apocalyptic number.

221012122202 is a deficient number, since it is larger than the sum of its proper divisors (128731621798).

221012122202 is a wasteful number, since it uses less digits than its factorization.

221012122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12953941.

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

Adding to 221012122202 its reverse (202221210122), we get a palindrome (423233332324).

The spelling of 221012122202 in words is "two hundred twenty-one billion, twelve million, one hundred twenty-two thousand, two hundred two".