100122000012221 has 4 divisors (see below), whose sum is σ = 109224000013344. Its totient is φ = 91020000011100.

The previous prime is 100122000012197. The next prime is 100122000012241. The reversal of 100122000012221 is 122210000221001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100122000012221 - 2⁴² = 95723953501117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100122000012196 and 100122000012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122000012241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4551000000545 + ... + 4551000000566.

It is an arithmetic number, because the mean of its divisors is an integer number (27306000003336).

Almost surely, 2^{100122000012221} is an apocalyptic number.

100122000012221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100122000012221 is a deficient number, since it is larger than the sum of its proper divisors (9102000001123).

100122000012221 is an equidigital number, since it uses as much as digits as its factorization.

100122000012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9102000001122.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100122000012221 its reverse (122210000221001), we get a palindrome (222332000233222).

The spelling of 100122000012221 in words is "one hundred trillion, one hundred twenty-two billion, twelve thousand, two hundred twenty-one".