20110111202 has 4 divisors (see below), whose sum is σ = 30165166806. Its totient is φ = 10055055600.

The previous prime is 20110111193. The next prime is 20110111211. The reversal of 20110111202 is 20211101102.

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

It is an interprime number because it is at equal distance from previous prime (20110111193) and next prime (20110111211).

It can be written as a sum of positive squares in only one way, i.e., 12562150561 + 7547960641 = 112081^2 + 86879^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5027527799 + ... + 5027527802.

Almost surely, 2^20110111202 is an apocalyptic number.

20110111202 is a deficient number, since it is larger than the sum of its proper divisors (10055055604).

20110111202 is a wasteful number, since it uses less digits than its factorization.

20110111202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10055055603.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20110111202 its reverse (20211101102), we get a palindrome (40321212304).

The spelling of 20110111202 in words is "twenty billion, one hundred ten million, one hundred eleven thousand, two hundred two".