20011002222210 has 64 divisors (see below), whose sum is σ = 48841355842560. Its totient is φ = 5245720698560.

The previous prime is 20011002222131. The next prime is 20011002222241. The reversal of 20011002222210 is 1222220011002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20011002222210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149078425 + ... + 149212595.

It is an arithmetic number, because the mean of its divisors is an integer number (763146185040).

Almost surely, 2^{20011002222210} is an apocalyptic number.

20011002222210 is an abundant number, since it is smaller than the sum of its proper divisors (28830353620350).

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

20011002222210 is a wasteful number, since it uses less digits than its factorization.

20011002222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218503.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20011002222210 its reverse (1222220011002), we get a palindrome (21233222233212).

The spelling of 20011002222210 in words is "twenty trillion, eleven billion, two million, two hundred twenty-two thousand, two hundred ten".