21200101200022 has 16 divisors (see below), whose sum is σ = 31812899977152. Its totient is φ = 10595801465280.

The previous prime is 21200101199989. The next prime is 21200101200049. The reversal of 21200101200022 is 22000210100212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21200101199975 and 21200101200011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297130072 + ... + 297201412.

It is an arithmetic number, because the mean of its divisors is an integer number (1988306248572).

Almost surely, 2^{21200101200022} is an apocalyptic number.

21200101200022 is a deficient number, since it is larger than the sum of its proper divisors (10612798777130).

21200101200022 is a wasteful number, since it uses less digits than its factorization.

21200101200022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128823.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21200101200022 its reverse (22000210100212), we get a palindrome (43200311300234).

The spelling of 21200101200022 in words is "twenty-one trillion, two hundred billion, one hundred one million, two hundred thousand, twenty-two".