20220001022100 has 144 divisors (see below), whose sum is σ = 63901761650496. Its totient is φ = 4895667456000.

The previous prime is 20220001022057. The next prime is 20220001022119. The reversal of 20220001022100 is 122010002202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1213861 + ... + 6474060.

It is an arithmetic number, because the mean of its divisors is an integer number (443762233684).

Almost surely, 2^{20220001022100} is an apocalyptic number.

20220001022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20220001022100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31950880825248).

20220001022100 is an abundant number, since it is smaller than the sum of its proper divisors (43681760628396).

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

20220001022100 is a wasteful number, since it uses less digits than its factorization.

20220001022100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7688746 (or 7688739 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20220001022100 its reverse (122010002202), we get a palindrome (20342011024302).

It can be divided in two parts, 2022000102 and 2100, that added together give a palindrome (2022002202).

The spelling of 20220001022100 in words is "twenty trillion, two hundred twenty billion, one million, twenty-two thousand, one hundred".