21214045034 has 64 divisors (see below), whose sum is σ = 43650835200. Its totient is φ = 7482958848.

The previous prime is 21214045019. The next prime is 21214045117. The reversal of 21214045034 is 43054041212.

It is a super-2 number, since 2×21214045034² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 21214044994 and 21214045012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121649 + ... + 239220.

It is an arithmetic number, because the mean of its divisors is an integer number (682044300).

Almost surely, 2^21214045034 is an apocalyptic number.

21214045034 is an abundant number, since it is smaller than the sum of its proper divisors (22436790166).

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

21214045034 is a wasteful number, since it uses less digits than its factorization.

21214045034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360927.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 21214045034 its reverse (43054041212), we get a palindrome (64268086246).

The spelling of 21214045034 in words is "twenty-one billion, two hundred fourteen million, forty-five thousand, thirty-four".