10222101022221 has 48 divisors (see below), whose sum is σ = 17019788797440. Its totient is φ = 5846832473760.

The previous prime is 10222101022181. The next prime is 10222101022247. The reversal of 10222101022221 is 12222010122201.

It is a happy number.

It is not a de Polignac number, because 10222101022221 - 2³⁰ = 10221027280397 is a prime.

It is a super-2 number, since 2×10222101022221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10222101022194 and 10222101022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222101022291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9836851 + ... + 10826256.

It is an arithmetic number, because the mean of its divisors is an integer number (354578933280).

Almost surely, 2^{10222101022221} is an apocalyptic number.

10222101022221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10222101022221 is a deficient number, since it is larger than the sum of its proper divisors (6797687775219).

10222101022221 is a wasteful number, since it uses less digits than its factorization.

10222101022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20663406 (or 20663403 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10222101022221 its reverse (12222010122201), we get a palindrome (22444111144422).

The spelling of 10222101022221 in words is "ten trillion, two hundred twenty-two billion, one hundred one million, twenty-two thousand, two hundred twenty-one".