21220200122110 has 32 divisors (see below), whose sum is σ = 41668954913664. Its totient is φ = 7716399684000.

The previous prime is 21220200122071. The next prime is 21220200122113. The reversal of 21220200122110 is 1122100202212.

It is a happy number.

It is a super-4 number, since 4×21220200122110⁴ (a number of 54 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220200122113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35516545 + ... + 36109075.

It is an arithmetic number, because the mean of its divisors is an integer number (1302154841052).

Almost surely, 2^{21220200122110} is an apocalyptic number.

21220200122110 is a deficient number, since it is larger than the sum of its proper divisors (20448754791554).

21220200122110 is a wasteful number, since it uses less digits than its factorization.

21220200122110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918120.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21220200122110 its reverse (1122100202212), we get a palindrome (22342300324322).

The spelling of 21220200122110 in words is "twenty-one trillion, two hundred twenty billion, two hundred million, one hundred twenty-two thousand, one hundred ten".