21201120010 has 16 divisors (see below), whose sum is σ = 43613732736. Its totient is φ = 7268955408.

The previous prime is 21201119993. The next prime is 21201120043. The reversal of 21201120010 is 1002110212.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 151436502 + ... + 151436641.

It is an arithmetic number, because the mean of its divisors is an integer number (2725858296).

Almost surely, 2^21201120010 is an apocalyptic number.

21201120010 is an abundant number, since it is smaller than the sum of its proper divisors (22412612726).

21201120010 is a wasteful number, since it uses less digits than its factorization.

21201120010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302873157.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 21201120010 its reverse (1002110212), we get a palindrome (22203230222).

The spelling of 21201120010 in words is "twenty-one billion, two hundred one million, one hundred twenty thousand, ten".