20120221110202 has 32 divisors (see below), whose sum is σ = 31558747841280. Its totient is φ = 9608317723200.

The previous prime is 20120221110169. The next prime is 20120221110247. The reversal of 20120221110202 is 20201112202102.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4904413 + ... + 8018335.

It is an arithmetic number, because the mean of its divisors is an integer number (986210870040).

Almost surely, 2^{20120221110202} is an apocalyptic number.

20120221110202 is a deficient number, since it is larger than the sum of its proper divisors (11438526731078).

20120221110202 is a wasteful number, since it uses less digits than its factorization.

20120221110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115158.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20120221110202 its reverse (20201112202102), we get a palindrome (40321333312304).

The spelling of 20120221110202 in words is "twenty trillion, one hundred twenty billion, two hundred twenty-one million, one hundred ten thousand, two hundred two".