21142214022 has 8 divisors (see below), whose sum is σ = 42284428056. Its totient is φ = 7047404672.

The previous prime is 21142213943. The next prime is 21142214039. The reversal of 21142214022 is 22041224112.

It is a sphenic number, since it is the product of 3 distinct primes.

21142214022 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 21142214022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1761851163 + ... + 1761851174.

It is an arithmetic number, because the mean of its divisors is an integer number (5285553507).

Almost surely, 2^21142214022 is an apocalyptic number.

21142214022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21142214022 is a wasteful number, since it uses less digits than its factorization.

21142214022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523702342.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 21142214022 its reverse (22041224112), we get a palindrome (43183438134).

The spelling of 21142214022 in words is "twenty-one billion, one hundred forty-two million, two hundred fourteen thousand, twenty-two".