21110000122 has 8 divisors (see below), whose sum is σ = 33331579200. Its totient is φ = 9999473724.

The previous prime is 21110000101. The next prime is 21110000137. The reversal of 21110000122 is 22100001112.

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 = 21110000099 and 21110000108.

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, 277763122 + ... + 277763197.

It is an arithmetic number, because the mean of its divisors is an integer number (4166447400).

Almost surely, 2^21110000122 is an apocalyptic number.

21110000122 is a deficient number, since it is larger than the sum of its proper divisors (12221579078).

21110000122 is a wasteful number, since it uses less digits than its factorization.

21110000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555526340.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21110000122 its reverse (22100001112), we get a palindrome (43210001234).

The spelling of 21110000122 in words is "twenty-one billion, one hundred ten million, one hundred twenty-two", and thus it is an aban number.