21102858195330 has 64 divisors (see below), whose sum is σ = 53029269216000. Its totient is φ = 5364386793216.

The previous prime is 21102858195317. The next prime is 21102858195383. The reversal of 21102858195330 is 3359185820112.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21102858195330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51988705 + ... + 52393044.

It is an arithmetic number, because the mean of its divisors is an integer number (828582331500).

Almost surely, 2^{21102858195330} is an apocalyptic number.

21102858195330 is an abundant number, since it is smaller than the sum of its proper divisors (31926411020670).

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

21102858195330 is a wasteful number, since it uses less digits than its factorization.

21102858195330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104382075.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 21102858195330 in words is "twenty-one trillion, one hundred two billion, eight hundred fifty-eight million, one hundred ninety-five thousand, three hundred thirty".