21011112200122 has 16 divisors (see below), whose sum is σ = 34491666045312. Its totient is φ = 9519992745120.

The previous prime is 21011112200107. The next prime is 21011112200159. The reversal of 21011112200122 is 22100221111012.

It is a super-2 number, since 2×21011112200122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21011112200096 and 21011112200105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1525632978 + ... + 1525646749.

It is an arithmetic number, because the mean of its divisors is an integer number (2155729127832).

Almost surely, 2^{21011112200122} is an apocalyptic number.

21011112200122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21011112200122 is a deficient number, since it is larger than the sum of its proper divisors (13480553845190).

21011112200122 is a wasteful number, since it uses less digits than its factorization.

21011112200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051280053.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21011112200122 its reverse (22100221111012), we get a palindrome (43111333311134).

The spelling of 21011112200122 in words is "twenty-one trillion, eleven billion, one hundred twelve million, two hundred thousand, one hundred twenty-two".