22021021201100 has 72 divisors (see below), whose sum is σ = 50644771808400. Its totient is φ = 8282363115520.

The previous prime is 22021021201063. The next prime is 22021021201103. The reversal of 22021021201100 is 110212012022.

It is not an unprimeable number, because it can be changed into a prime (22021021201103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4390934 + ... + 7957533.

It is an arithmetic number, because the mean of its divisors is an integer number (703399608450).

Almost surely, 2^{22021021201100} is an apocalyptic number.

22021021201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021021201100 is an abundant number, since it is smaller than the sum of its proper divisors (28623750607300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22021021201100 is a wasteful number, since it uses less digits than its factorization.

22021021201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12349547 (or 12349540 counting only the distinct ones).

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

Adding to 22021021201100 its reverse (110212012022), we get a palindrome (22131233213122).

The spelling of 22021021201100 in words is "twenty-two trillion, twenty-one billion, twenty-one million, two hundred one thousand, one hundred".