21201120110202 has 8 divisors (see below), whose sum is σ = 42402240220416. Its totient is φ = 7067040036732.

The previous prime is 21201120110201. The next prime is 21201120110249. The reversal of 21201120110202 is 20201102110212.

It is a sphenic number, since it is the product of 3 distinct primes.

21201120110202 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (21201120110201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1766760009178 + ... + 1766760009189.

It is an arithmetic number, because the mean of its divisors is an integer number (5300280027552).

Almost surely, 2^{21201120110202} is an apocalyptic number.

21201120110202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21201120110202 is a wasteful number, since it uses less digits than its factorization.

21201120110202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3533520018372.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21201120110202 its reverse (20201102110212), we get a palindrome (41402222220414).

The spelling of 21201120110202 in words is "twenty-one trillion, two hundred one billion, one hundred twenty million, one hundred ten thousand, two hundred two".