21042114214 has 16 divisors (see below), whose sum is σ = 34631588880. Its totient is φ = 9509308960.

The previous prime is 21042114173. The next prime is 21042114221. The reversal of 21042114214 is 41241124012.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 2760529 + ... + 2768140.

It is an arithmetic number, because the mean of its divisors is an integer number (2164474305).

Almost surely, 2^21042114214 is an apocalyptic number.

21042114214 is a deficient number, since it is larger than the sum of its proper divisors (13589474666).

21042114214 is a wasteful number, since it uses less digits than its factorization.

21042114214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5528855.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 21042114214 its reverse (41241124012), we get a palindrome (62283238226).

The spelling of 21042114214 in words is "twenty-one billion, forty-two million, one hundred fourteen thousand, two hundred fourteen".