21100123120322 has 8 divisors (see below), whose sum is σ = 31651097235456. Its totient is φ = 10549757375172.

The previous prime is 21100123120313. The next prime is 21100123120327. The reversal of 21100123120322 is 22302132100112.

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

It is a junction number, because it is equal to n+sod(n) for n = 21100123120294 and 21100123120303.

It is not an unprimeable number, because it can be changed into a prime (21100123120327) 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, 152005778 + ... + 152144525.

It is an arithmetic number, because the mean of its divisors is an integer number (3956387154432).

Almost surely, 2^{21100123120322} is an apocalyptic number.

21100123120322 is a deficient number, since it is larger than the sum of its proper divisors (10550974115134).

21100123120322 is a wasteful number, since it uses less digits than its factorization.

21100123120322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304184992.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21100123120322 its reverse (22302132100112), we get a palindrome (43402255220434).

The spelling of 21100123120322 in words is "twenty-one trillion, one hundred billion, one hundred twenty-three million, one hundred twenty thousand, three hundred twenty-two".