100122221011 has 4 divisors (see below), whose sum is σ = 100220477400. Its totient is φ = 100023964624.

The previous prime is 100122221009. The next prime is 100122221027. The reversal of 100122221011 is 110122221001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100122221011 - 2¹ = 100122221009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100122220982 and 100122221000.

It is not an unprimeable number, because it can be changed into a prime (100122291011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49126666 + ... + 49128703.

It is an arithmetic number, because the mean of its divisors is an integer number (25055119350).

Almost surely, 2^100122221011 is an apocalyptic number.

100122221011 is a deficient number, since it is larger than the sum of its proper divisors (98256389).

100122221011 is an equidigital number, since it uses as much as digits as its factorization.

100122221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98256388.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100122221011 its reverse (110122221001), we get a palindrome (210244442012).

The spelling of 100122221011 in words is "one hundred billion, one hundred twenty-two million, two hundred twenty-one thousand, eleven".