21234166010 has 16 divisors (see below), whose sum is σ = 38223428256. Its totient is φ = 8493237648.

The previous prime is 21234166001. The next prime is 21234166033. The reversal of 21234166010 is 1066143212.

21234166010 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×21234166010² (a number of 21 digits) contains 22 as substring.

It is a Curzon 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, 221789 + ... + 302751.

It is an arithmetic number, because the mean of its divisors is an integer number (2388964266).

Almost surely, 2^21234166010 is an apocalyptic number.

21234166010 is a deficient number, since it is larger than the sum of its proper divisors (16989262246).

21234166010 is a wasteful number, since it uses less digits than its factorization.

21234166010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107197.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 21234166010 in words is "twenty-one billion, two hundred thirty-four million, one hundred sixty-six thousand, ten".