21220110000122 has 32 divisors (see below), whose sum is σ = 35636322427200. Its totient is φ = 9395030332800.

The previous prime is 21220110000119. The next prime is 21220110000127. The reversal of 21220110000122 is 22100001102212.

It is a junction number, because it is equal to n+sod(n) for n = 21220110000097 and 21220110000106.

It is not an unprimeable number, because it can be changed into a prime (21220110000127) 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, 74850779 + ... + 75133742.

It is an arithmetic number, because the mean of its divisors is an integer number (1113635075850).

Almost surely, 2^{21220110000122} is an apocalyptic number.

21220110000122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21220110000122 is a deficient number, since it is larger than the sum of its proper divisors (14416212427078).

21220110000122 is a wasteful number, since it uses less digits than its factorization.

21220110000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149984702.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21220110000122 its reverse (22100001102212), we get a palindrome (43320111102334).

The spelling of 21220110000122 in words is "twenty-one trillion, two hundred twenty billion, one hundred ten million, one hundred twenty-two", and thus it is an aban number.