21112102014 has 16 divisors (see below), whose sum is σ = 42527976960. Its totient is φ = 6986738520.

The previous prime is 21112102007. The next prime is 21112102027. The reversal of 21112102014 is 41020121112.

It is a junction number, because it is equal to n+sod(n) for n = 21112101984 and 21112102002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12656302 + ... + 12657969.

It is an arithmetic number, because the mean of its divisors is an integer number (2657998560).

Almost surely, 2^21112102014 is an apocalyptic number.

21112102014 is an abundant number, since it is smaller than the sum of its proper divisors (21415874946).

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

21112102014 is a wasteful number, since it uses less digits than its factorization.

21112102014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25314415.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21112102014 its reverse (41020121112), we get a palindrome (62132223126).

The spelling of 21112102014 in words is "twenty-one billion, one hundred twelve million, one hundred two thousand, fourteen".