100020202221210 has 128 divisors (see below), whose sum is σ = 255737744294400. Its totient is φ = 24948626841600.

The previous prime is 100020202221209. The next prime is 100020202221211. The reversal of 100020202221210 is 12122202020001.

It is an interprime number because it is at equal distance from previous prime (100020202221209) and next prime (100020202221211).

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100020202221210.

It is not an unprimeable number, because it can be changed into a prime (100020202221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55219435 + ... + 57001985.

It is an arithmetic number, because the mean of its divisors is an integer number (1997951127300).

Almost surely, 2^{100020202221210} is an apocalyptic number.

100020202221210 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 100020202221210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127868872147200).

100020202221210 is an abundant number, since it is smaller than the sum of its proper divisors (155717542073190).

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

100020202221210 is a wasteful number, since it uses less digits than its factorization.

100020202221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783256.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100020202221210 its reverse (12122202020001), we get a palindrome (112142404241211).

The spelling of 100020202221210 in words is "one hundred trillion, twenty billion, two hundred two million, two hundred twenty-one thousand, two hundred ten".