12122021100210 has 128 divisors (see below), whose sum is σ = 33341261451264. Its totient is φ = 2763064462080.

The previous prime is 12122021100209. The next prime is 12122021100251. The reversal of 12122021100210 is 1200112022121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12122021100210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 158148595 + ... + 158225225.

It is an arithmetic number, because the mean of its divisors is an integer number (260478605088).

Almost surely, 2^{12122021100210} is an apocalyptic number.

12122021100210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12122021100210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16670630725632).

12122021100210 is an abundant number, since it is smaller than the sum of its proper divisors (21219240351054).

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

12122021100210 is a wasteful number, since it uses less digits than its factorization.

12122021100210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78728.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12122021100210 its reverse (1200112022121), we get a palindrome (13322133122331).

The spelling of 12122021100210 in words is "twelve trillion, one hundred twenty-two billion, twenty-one million, one hundred thousand, two hundred ten".