21120200222 has 8 divisors (see below), whose sum is σ = 34560327672. Its totient is φ = 9600091000.

The previous prime is 21120200207. The next prime is 21120200249. The reversal of 21120200222 is 22200202112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21120200197 and 21120200206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480004529 + ... + 480004572.

It is an arithmetic number, because the mean of its divisors is an integer number (4320040959).

Almost surely, 2^21120200222 is an apocalyptic number.

21120200222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21120200222 is a deficient number, since it is larger than the sum of its proper divisors (13440127450).

21120200222 is a wasteful number, since it uses less digits than its factorization.

21120200222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960009114.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21120200222 its reverse (22200202112), we get a palindrome (43320402334).

The spelling of 21120200222 in words is "twenty-one billion, one hundred twenty million, two hundred thousand, two hundred twenty-two".