20021110011202 has 4 divisors (see below), whose sum is σ = 30031665016806. Its totient is φ = 10010555005600.

The previous prime is 20021110011187. The next prime is 20021110011223. The reversal of 20021110011202 is 20211001112002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14639354951881 + 5381755059321 = 3826141^2 + 2319861^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005277502799 + ... + 5005277502802.

Almost surely, 2^{20021110011202} is an apocalyptic number.

20021110011202 is a deficient number, since it is larger than the sum of its proper divisors (10010555005604).

20021110011202 is a wasteful number, since it uses less digits than its factorization.

20021110011202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010555005603.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20021110011202 its reverse (20211001112002), we get a palindrome (40232111123204).

The spelling of 20021110011202 in words is "twenty trillion, twenty-one billion, one hundred ten million, eleven thousand, two hundred two".