10221021212222 has 32 divisors (see below), whose sum is σ = 15985966464000. Its totient is φ = 4895164689408.

The previous prime is 10221021212221. The next prime is 10221021212279. The reversal of 10221021212222 is 22221212012201.

It is a junction number, because it is equal to n+sod(n) for n = 10221021212194 and 10221021212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10221021212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221936654 + ... + 221982702.

It is an arithmetic number, because the mean of its divisors is an integer number (499561452000).

Almost surely, 2^{10221021212222} is an apocalyptic number.

10221021212222 is a deficient number, since it is larger than the sum of its proper divisors (5764945251778).

10221021212222 is a wasteful number, since it uses less digits than its factorization.

10221021212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76340.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 10221021212222 its reverse (22221212012201), we get a palindrome (32442233224423).

The spelling of 10221021212222 in words is "ten trillion, two hundred twenty-one billion, twenty-one million, two hundred twelve thousand, two hundred twenty-two".