22001000100321 has 16 divisors (see below), whose sum is σ = 32866358874048. Its totient is φ = 12973562712000.

The previous prime is 22001000100257. The next prime is 22001000100323. The reversal of 22001000100321 is 12300100010022.

It is not a de Polignac number, because 22001000100321 - 2⁶ = 22001000100257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22001000100297 and 22001000100306.

It is not an unprimeable number, because it can be changed into a prime (22001000100323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9009417330 + ... + 9009419771.

It is an arithmetic number, because the mean of its divisors is an integer number (2054147429628).

Almost surely, 2^{22001000100321} is an apocalyptic number.

It is an amenable number.

22001000100321 is a deficient number, since it is larger than the sum of its proper divisors (10865358773727).

22001000100321 is a wasteful number, since it uses less digits than its factorization.

22001000100321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18018837152.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 22001000100321 its reverse (12300100010022), we get a palindrome (34301100110343).

The spelling of 22001000100321 in words is "twenty-two trillion, one billion, one hundred thousand, three hundred twenty-one".