21106620230 has 16 divisors (see below), whose sum is σ = 38044188000. Its totient is φ = 8431032192.

The previous prime is 21106620191. The next prime is 21106620259. The reversal of 21106620230 is 3202660112.

It is a junction number, because it is equal to n+sod(n) for n = 21106620196 and 21106620205.

It is a congruent 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, 1444355 + ... + 1458894.

It is an arithmetic number, because the mean of its divisors is an integer number (2377761750).

Almost surely, 2^21106620230 is an apocalyptic number.

21106620230 is a deficient number, since it is larger than the sum of its proper divisors (16937567770).

21106620230 is a wasteful number, since it uses less digits than its factorization.

21106620230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903983.

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 21106620230 in words is "twenty-one billion, one hundred six million, six hundred twenty thousand, two hundred thirty".