20110101120202 has 4 divisors (see below), whose sum is σ = 30165151680306. Its totient is φ = 10055050560100.

The previous prime is 20110101120163. The next prime is 20110101120217. The reversal of 20110101120202 is 20202110101102.

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., 15543456065361 + 4566645054841 = 3942519^2 + 2136971^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027525280049 + ... + 5027525280052.

Almost surely, 2^{20110101120202} is an apocalyptic number.

20110101120202 is a deficient number, since it is larger than the sum of its proper divisors (10055050560104).

20110101120202 is a wasteful number, since it uses less digits than its factorization.

20110101120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055050560103.

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

Adding to 20110101120202 its reverse (20202110101102), we get a palindrome (40312211221304).

The spelling of 20110101120202 in words is "twenty trillion, one hundred ten billion, one hundred one million, one hundred twenty thousand, two hundred two".