20111101210202 has 4 divisors (see below), whose sum is σ = 30166651815306. Its totient is φ = 10055550605100.

The previous prime is 20111101210201. The next prime is 20111101210247. The reversal of 20111101210202 is 20201210111102.

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., 16332194598721 + 3778906611481 = 4041311^2 + 1943941^2 .

It is not an unprimeable number, because it can be changed into a prime (20111101210201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027775302549 + ... + 5027775302552.

Almost surely, 2^{20111101210202} is an apocalyptic number.

20111101210202 is a deficient number, since it is larger than the sum of its proper divisors (10055550605104).

20111101210202 is a wasteful number, since it uses less digits than its factorization.

20111101210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055550605103.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20111101210202 its reverse (20201210111102), we get a palindrome (40312311321304).

The spelling of 20111101210202 in words is "twenty trillion, one hundred eleven billion, one hundred one million, two hundred ten thousand, two hundred two".