21201112000222 has 32 divisors (see below), whose sum is σ = 40240606475520. Its totient is φ = 8136887330880.

The previous prime is 21201112000213. The next prime is 21201112000273. The reversal of 21201112000222 is 22200021110212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21201112000196 and 21201112000205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1027374447 + ... + 1027395082.

It is an arithmetic number, because the mean of its divisors is an integer number (1257518952360).

Almost surely, 2^{21201112000222} is an apocalyptic number.

21201112000222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21201112000222 is a deficient number, since it is larger than the sum of its proper divisors (19039494475298).

21201112000222 is a wasteful number, since it uses less digits than its factorization.

21201112000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054769616.

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

Adding to 21201112000222 its reverse (22200021110212), we get a palindrome (43401133110434).

The spelling of 21201112000222 in words is "twenty-one trillion, two hundred one billion, one hundred twelve million, two hundred twenty-two", and thus it is an aban number.