20220021201100 has 108 divisors (see below), whose sum is σ = 51129577273656. Its totient is φ = 6920562862080.

The previous prime is 20220021200969. The next prime is 20220021201109. The reversal of 20220021201100 is 110212002202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20220021201109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 748554 + ... + 6403153.

Almost surely, 2^{20220021201100} is an apocalyptic number.

20220021201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220021201100 is an abundant number, since it is smaller than the sum of its proper divisors (30909556072556).

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

20220021201100 is a wasteful number, since it uses less digits than its factorization.

20220021201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7152312 (or 7152298 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20220021201100 its reverse (110212002202), we get a palindrome (20330233203302).

The spelling of 20220021201100 in words is "twenty trillion, two hundred twenty billion, twenty-one million, two hundred one thousand, one hundred".