100122022222021 has 4 divisors (see below), whose sum is σ = 101389389592000. Its totient is φ = 98854654852044.

The previous prime is 100122022222003. The next prime is 100122022222067. The reversal of 100122022222021 is 120222220221001.

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 a de Polignac number, because none of the positive numbers 2^k-100122022222021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100122022222021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122022225021) 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, 633683684871 + ... + 633683685028.

It is an arithmetic number, because the mean of its divisors is an integer number (25347347398000).

Almost surely, 2^{100122022222021} is an apocalyptic number.

It is an amenable number.

100122022222021 is a deficient number, since it is larger than the sum of its proper divisors (1267367369979).

100122022222021 is an equidigital number, since it uses as much as digits as its factorization.

100122022222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267367369978.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 100122022222021 its reverse (120222220221001), we get a palindrome (220344242443022).

The spelling of 100122022222021 in words is "one hundred trillion, one hundred twenty-two billion, twenty-two million, two hundred twenty-two thousand, twenty-one".