21211112000122 has 24 divisors (see below), whose sum is σ = 34972469265888. Its totient is φ = 9641296210920.

The previous prime is 21211112000077. The next prime is 21211112000153. The reversal of 21211112000122 is 22100021111212.

It is a super-2 number, since 2×21211112000122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21211112000096 and 21211112000105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20997813 + ... + 21984775.

It is an arithmetic number, because the mean of its divisors is an integer number (1457186219412).

Almost surely, 2^{21211112000122} is an apocalyptic number.

21211112000122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21211112000122 is a deficient number, since it is larger than the sum of its proper divisors (13761357265766).

21211112000122 is a wasteful number, since it uses less digits than its factorization.

21211112000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075794 (or 1075783 counting only the distinct ones).

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

Adding to 21211112000122 its reverse (22100021111212), we get a palindrome (43311133111334).

The spelling of 21211112000122 in words is "twenty-one trillion, two hundred eleven billion, one hundred twelve million, one hundred twenty-two", and thus it is an aban number.