21200101211022 has 64 divisors (see below), whose sum is σ = 45628013021184. Its totient is φ = 6549474792960.

The previous prime is 21200101211021. The next prime is 21200101211041. The reversal of 21200101211022 is 22011210100212.

It is a junction number, because it is equal to n+sod(n) for n = 21200101210992 and 21200101211010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200101211021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7383558 + ... + 9844649.

It is an arithmetic number, because the mean of its divisors is an integer number (712937703456).

Almost surely, 2^{21200101211022} is an apocalyptic number.

21200101211022 is an abundant number, since it is smaller than the sum of its proper divisors (24427911810162).

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

21200101211022 is a wasteful number, since it uses less digits than its factorization.

21200101211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17228513.

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

Adding to 21200101211022 its reverse (22011210100212), we get a palindrome (43211311311234).

The spelling of 21200101211022 in words is "twenty-one trillion, two hundred billion, one hundred one million, two hundred eleven thousand, twenty-two".