100222022101221 has 24 divisors (see below), whose sum is σ = 150210474459864. Its totient is φ = 64338684549120.

The previous prime is 100222022101217. The next prime is 100222022101259. The reversal of 100222022101221 is 122101220222001.

It is a happy number.

100222022101221 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 220 + 221 + 0 + 1 + 221 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12239404292196 + 87982617809025 = 3498486^2 + 9379905^2 .

It is not a de Polignac number, because 100222022101221 - 2² = 100222022101217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100222022101194 and 100222022101203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100222022101211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1551344160 + ... + 1551408761.

It is an arithmetic number, because the mean of its divisors is an integer number (6258769769161).

Almost surely, 2^{100222022101221} is an apocalyptic number.

It is an amenable number.

100222022101221 is a deficient number, since it is larger than the sum of its proper divisors (49988452358643).

100222022101221 is a wasteful number, since it uses less digits than its factorization.

100222022101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102753061 (or 3102753058 counting only the distinct ones).

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

Adding to 100222022101221 its reverse (122101220222001), we get a palindrome (222323242323222).

The spelling of 100222022101221 in words is "one hundred trillion, two hundred twenty-two billion, twenty-two million, one hundred one thousand, two hundred twenty-one".