100000022222221 has 8 divisors (see below), whose sum is σ = 109167274101600. Its totient is φ = 90845493804240.

The previous prime is 100000022222203. The next prime is 100000022222227. The reversal of 100000022222221 is 122222220000001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100000022222221 is a prime.

It is a super-5 number, since 5×100000022222221⁵ (a number of 71 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100000022222195 and 100000022222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000022222227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3180848911 + ... + 3180880348.

It is an arithmetic number, because the mean of its divisors is an integer number (13645909262700).

Almost surely, 2^{100000022222221} is an apocalyptic number.

100000022222221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100000022222221 is a deficient number, since it is larger than the sum of its proper divisors (9167251879379).

100000022222221 is a wasteful number, since it uses less digits than its factorization.

100000022222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6361730699.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 100000022222221 its reverse (122222220000001), we get a palindrome (222222242222222).

The spelling of 100000022222221 in words is "one hundred trillion, twenty-two million, two hundred twenty-two thousand, two hundred twenty-one".