21012201114 has 16 divisors (see below), whose sum is σ = 42651632928. Its totient is φ = 6899528592.

The previous prime is 21012201113. The next prime is 21012201211. The reversal of 21012201114 is 41110221012.

It is a junction number, because it is equal to n+sod(n) for n = 21012201093 and 21012201102.

It is not an unprimeable number, because it can be changed into a prime (21012201113) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26134177 + ... + 26134980.

It is an arithmetic number, because the mean of its divisors is an integer number (2665727058).

Almost surely, 2^21012201114 is an apocalyptic number.

21012201114 is an abundant number, since it is smaller than the sum of its proper divisors (21639431814).

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

21012201114 is a wasteful number, since it uses less digits than its factorization.

21012201114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52269229.

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

Adding to 21012201114 its reverse (41110221012), we get a palindrome (62122422126).

The spelling of 21012201114 in words is "twenty-one billion, twelve million, two hundred one thousand, one hundred fourteen".