21014563221058 has 16 divisors (see below), whose sum is σ = 34388129384640. Its totient is φ = 9551890220400.

The previous prime is 21014563221013. The next prime is 21014563221097. The reversal of 21014563221058 is 85012236541012.

It is a happy number.

It is a super-2 number, since 2×21014563221058² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21014563221058.

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, 8026998 + ... + 10318033.

It is an arithmetic number, because the mean of its divisors is an integer number (2149258086540).

Almost surely, 2^{21014563221058} is an apocalyptic number.

21014563221058 is a deficient number, since it is larger than the sum of its proper divisors (13373566163582).

21014563221058 is a wasteful number, since it uses less digits than its factorization.

21014563221058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18397113.

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 21014563221058 in words is "twenty-one trillion, fourteen billion, five hundred sixty-three million, two hundred twenty-one thousand, fifty-eight".