20102212221011 has 6 divisors (see below), whose sum is σ = 20819294703012. Its totient is φ = 19409032488440.

The previous prime is 20102212220969. The next prime is 20102212221017. The reversal of 20102212221011 is 11012221220102.

It is not a de Polignac number, because 20102212221011 - 2⁶ = 20102212220947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20102212221017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11951373845 + ... + 11951375526.

It is an arithmetic number, because the mean of its divisors is an integer number (3469882450502).

Almost surely, 2^{20102212221011} is an apocalyptic number.

20102212221011 is a deficient number, since it is larger than the sum of its proper divisors (717082482001).

20102212221011 is an equidigital number, since it uses as much as digits as its factorization.

20102212221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23902749429 (or 23902749400 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20102212221011 its reverse (11012221220102), we get a palindrome (31114433441113).

The spelling of 20102212221011 in words is "twenty trillion, one hundred two billion, two hundred twelve million, two hundred twenty-one thousand, eleven".