21110010221112 has 16 divisors (see below), whose sum is σ = 52775025552840. Its totient is φ = 7036670073696.

The previous prime is 21110010221107. The next prime is 21110010221149. The reversal of 21110010221112 is 21112201001112.

It is a happy number.

It is a super-2 number, since 2×21110010221112² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21110010221091 and 21110010221100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439791879583 + ... + 439791879630.

Almost surely, 2^{21110010221112} is an apocalyptic number.

It is an amenable number.

21110010221112 is an abundant number, since it is smaller than the sum of its proper divisors (31665015331728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21110010221112 is a wasteful number, since it uses less digits than its factorization.

21110010221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879583759222 (or 879583759218 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 21110010221112 its reverse (21112201001112), we get a palindrome (42222211222224).

The spelling of 21110010221112 in words is "twenty-one trillion, one hundred ten billion, ten million, two hundred twenty-one thousand, one hundred twelve".