20210102222200 has 144 divisors (see below), whose sum is σ = 51673450812480. Its totient is φ = 7345578240000.

The previous prime is 20210102222173. The next prime is 20210102222203. The reversal of 20210102222200 is 222220101202.

It is a super-3 number, since 3×20210102222200³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210102222203) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 50159545 + ... + 50560855.

It is an arithmetic number, because the mean of its divisors is an integer number (358843408420).

Almost surely, 2^{20210102222200} is an apocalyptic number.

20210102222200 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 20210102222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25836725406240).

20210102222200 is an abundant number, since it is smaller than the sum of its proper divisors (31463348590280).

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

20210102222200 is a wasteful number, since it uses less digits than its factorization.

20210102222200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403430 (or 403410 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20210102222200 its reverse (222220101202), we get a palindrome (20432322323402).

The spelling of 20210102222200 in words is "twenty trillion, two hundred ten billion, one hundred two million, two hundred twenty-two thousand, two hundred".