20221012200102 has 128 divisors (see below), whose sum is σ = 47577120159744. Its totient is φ = 5608453229568.

The previous prime is 20221012200071. The next prime is 20221012200107. The reversal of 20221012200102 is 20100221012202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221012200107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1263252583 + ... + 1263268589.

It is an arithmetic number, because the mean of its divisors is an integer number (371696251248).

Almost surely, 2^{20221012200102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20221012200102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23788560079872).

20221012200102 is an abundant number, since it is smaller than the sum of its proper divisors (27356107959642).

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

20221012200102 is a wasteful number, since it uses less digits than its factorization.

20221012200102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17862.

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

Adding to 20221012200102 its reverse (20100221012202), we get a palindrome (40321233212304).

The spelling of 20221012200102 in words is "twenty trillion, two hundred twenty-one billion, twelve million, two hundred thousand, one hundred two".